SOLUTION: solve the following system of equations by substitution... please {{{-x+3y=11}}} {{{4x-y=-11}}}

SOLUTION: solve the following system of equations by substitution... please {{{-x+3y=11}}} {{{4x-y=-11}}}

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Question 159177: solve the following system of equations by substitution... please

Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
equation 1
equation 2
.
Solve equation 1 for x:

.
Substitute the above into equation 2 and solve for y:

.
Finally, substitute the above back into equation 1 and solve for x:

.
Solution: x = -2 and y = 3

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