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Problem

For the following exercises, solve each system by…

01:55

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Problem 1 Problem 2 Problem 3 Problem 4 Problem 5 Problem 6 Problem 7 Problem 8 Problem 9 Problem 10 Problem 11 Problem 12 Problem 13 Problem 14 Problem 15 Problem 16 Problem 17 Problem 18 Problem 19 Problem 20 Problem 21 Problem 22 Problem 23 Problem 24 Problem 25 Problem 26 Problem 27 Problem 28 Problem 29 Problem 30 Problem 31 Problem 32 Problem 33 Problem 34 Problem 35 Problem 36 Problem 37 Problem 38 Problem 39 Problem 40 Problem 41 Problem 42 Problem 43 Problem 44 Problem 45 Problem 46 Problem 47 Problem 48 Problem 49 Problem 50 Problem 51 Problem 52 Problem 53 Problem 54 Problem 55 Problem 56 Problem 57 Problem 58 Problem 59 Problem 60 Problem 61 Problem 62 Problem 63 Problem 64 Problem 65 Problem 66 Problem 67 Problem 68 Problem 69 Problem 70 Problem 71 Problem 72 Problem 73 Problem 74 Problem 75 Problem 76 Problem 77

Problem 16 Easy Difficulty

For the following exercises, solve each system by substitution.
$$
\begin{aligned} x-0.2 y &=1 \\-10 x+2 y &=5 \end{aligned}
$$

Answer

No solution

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College Algebra

Chapter 7

Systems of Equations and Inequalities

Section 1

Systems of Linear Equations: Two Variables

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Systems of Equations and Inequalities

Introduction to Matrices

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Watch More Solved Questions in Chapter 7

Problem 1

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Problem 15

Problem 16

Problem 17

Problem 18

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Problem 55

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Video Transcript

All right, so 16 will continue to solve using Methodist substitution. Um, this one right here. Uh, let me see what we're going for myself. Or let's sew or no. Uh, so war. I saw the 1st 1 for X. So state this one here. So I'm looking at it. Just which one's gonna be easiest to get a single variable by itself. Since sex was already here. I know I need to do is add point too wide on both sides. So 0.2, why? Plus one? It's a value for X, even first equation. Then I take that, and I substitute that in for excellent first equation in the second place. One they use I negative 10 went to Why? Plus one and then continue with the rest of the equation minus two. Why equals negative? Yeah. Um, distribute here. So this is gonna be negative, too. Why? Um, minus 10. Minus two equals negative. 10? Yeah. When we combine like terms here, um, we get negative for why minus 10 equals negative. 10 at 10 to both sides. And you know why people zero. So why now? Why? Well, zero. Then I go back up here except to zero in for Why I get X Peoples. I want to time zero this one. So axe this one. So these two lines cross at the 20.1 mama zero.

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College Algebra

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