Question

Use linear combination to solve the system of equations. Show your work.

Check your answer to show proof that the solution works in each equation.

`2x+4y=6\\x-4y=-21`

Answer 1

Solve for the first variable in one of the equations, then substitute the result into the other equation.
Graph form: (-5,4)
Equation form: x=-5 , y=4

Answer 2

Solve for the first variable in one of the equations, then substitute the result into the other equation.
Graphing form:
(-5,4)
Equation Form:
x = -5, y = 4