Combine:
<span>g+24.50
</span><span>7g- 52.34
---------------
8g - 27.84 <= answer</span>
Substitute y = -2x + 4 into 7y = -14x +28
7y = -14x +28
7(-2x + 4)= -14x +28
-14x + 28 = -14x +28
0 = 0
answer
infinitely many solutions
It is 32.0173263 because you add spaces to the decimal point and of course you don't put the zeros in