Question

Solve the system of equations by the elimination method.

-x + 2y = 0

x + 2y = 7

Answer 1

`\left \{ {{-x+2=0} \atop {x+2y=7}} \right.`

-x + 2 = 0 --> -x = -2

x + 2y = 7 --> x + 2y = 7

________

2y = 7-2 = 5 --> y = 5/2

x = -2y + 7 --> x = -5 + 7 --> x = 2

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