Question

solve the system of equations by the addition method

x+7y=58
-3x+7y=50

Answer 1

x+7y=58

-3x+7y=50
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Multiply eqn 2 by -1
x + 7y = 58
3x -7y = -50
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add eqn 1 to eqn 2
4x + 0 = 8
x = 8/2 = 4
Can you finish?