Asked by Anonymous
solve the system of equations by the addition method
x+7y=58
-3x+7y=50
x+7y=58
-3x+7y=50
Answers
Answered by
DrBob222
x+7y=58
-3x+7y=50
------------------------
Multiply eqn 2 by -1
x + 7y = 58
3x -7y = -50
----------------
add eqn 1 to eqn 2
4x + 0 = 8
x = 8/2 = 4
Can you finish?
-3x+7y=50
------------------------
Multiply eqn 2 by -1
x + 7y = 58
3x -7y = -50
----------------
add eqn 1 to eqn 2
4x + 0 = 8
x = 8/2 = 4
Can you finish?
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