Asked by Anonymous
Solve using the substitution method.
-8x + y = 18
9x + 13y = 8
-8x + y = 18
9x + 13y = 8
Answers
Answered by
PsyDAG
Add 8x to both sides of first equation.
y = 18 + 8x
9x + 13y = 8
Substitute 18+8x for y in the second equation and solve for x. Insert that value into the first equation to solve for y. Check by putting both values into the second equation.
y = 18 + 8x
9x + 13y = 8
Substitute 18+8x for y in the second equation and solve for x. Insert that value into the first equation to solve for y. Check by putting both values into the second equation.
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