What is 0.5x + 2.2y=9

6x+0.4y = - 22

What's the answer and how do I complete the problem?

Hat does x and y equal?

What you can do is multiply the whole first equation by 12, so 6x + 26.4y = 108.

then since the coefficients of the x value (the number in front of the x) are the same in both equations, you can subtract the second equation from the first:

6x + 26.4y = 108

- (6x + 0.4y = - 22)

26y = 130 divide by 26

y = 5

you can then plug y=5 into one of the equations to solve for x:

0.5x + 2.2 (5) = 9

0.5x + 11 = 9 subtract 11 from both sides

0.5x = - 2 multiply each side by 2

x = - 4