Question

Solve the system of equations.

Answer 1

X=9 and Y=81

Explanation:

Answer 2

For this case we have a system of two equations with two unknowns:

`y = 9x\\y = 2x + 63`

Matching we have:

`9x = 2x + 63`

subtracting 2x on both sides of the equation:

`9x-2x = 2x-2x + 63\\7x = 63`

Dividing between 7 on both sides of the equation:

`\frac {7x} {7} = \frac {63} {7}\\x = 9`

We find the value of y:

`y = 9 (9)\\y = 81`

ANswer:

`x = 9\\y = 81`