Question

@iGreen 2x+6y=32
5x-2y=12
solve using substitution

Answer 1

2x + 6y = 32

Subtract 6y to both sides:

2x = -6y + 32

Divide 2 to both sides:

x = -3y + 16

Plug in '-3y + 16' for 'x' in the 2nd equation:

5x - 2y = 12

5(-3y + 16) - 2y = 12

Distribute 5 into the parenthesis:

-15y + 80 - 2y = 12

Combine like terms:

-17y + 80 = 12

Subtract 80 to both sides, what's 12 - 80?

Answer 2

-68?

Answer 3

Yes, so we have:

-17y = -68

Divide -17 to both sides, what's -68 / -17?

Answer 4

is the final answer (4,4)?

Answer 5

Yep, you got it.. (4, 4) is the final answer.

Answer 6

okay I have two more problems I need help with. can u help?