5x-y+2=0 ; -2x-y+7=0 solve by elimination
Added by Kim P.
Step 1
In this case, we can multiply the first equation by 2 to make the coefficients of y additive inverses. (2)(5x - y + 2) = (2)(0) 10x - 2y + 4 = 0 Now we have the two equations: 10x - 2y + 4 = 0 -2x - y + 7 = 0 Show more…
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