Question

Solving Systems of Equations by the Addition Method
7x + 2y = -1
3x - 4y = 19

Answer 1

first multiply the entire top equation by 2

what do you get?

Answer 2

14x + 4y = -2

Answer 3

now add the top and bottom equations as you would a simple addition problem

Answer 4

17x = 17

Answer 5

x= 1 yes?

Answer 6

yes. well done

Answer 7

Thank you alekos :)

Answer 8

I know that the second half I substitute the x for 1 to solve :)

Answer 9

oops using one of the problems :)

Answer 10

yes, that's right

Answer 11

Thanks again...

Answer 12

x=1