Question

4x+9y=35
-4x+y=35
(Type an ordered pair)

Answer 1

Answer:
`(-7,7)`

Explanation:

Given the following system of equations:

`\left \{ {{4x+9y=35} \atop {-4x+y=35}} \right.`

You can solve it using the Elimination Method:

1. Add the equations and solve for "y". Then:

`\left \{ {{4x+9y=35} \atop {-4x+y=35}} \right.\\...................\\10x=70\\\\x=(70)/(10)\\\\x=7`

2. Substitute the value of "y" into any original equation and solve for "x" in order to find its value:

`4x+9(7)=35\\\\4x=35-63\\\\x=(-28)/(4)\\\\x=-7`

Therefore, the solution is:

`(-7,7)`