Question

Please help photomaths isn't working and I don't get how to do this

Answer 1

Answer:

Our functions are:

$f(x) = -5x + 12\\g(x) = -\frac{3}{2}x + 4$

To solve this, we must use the expression g(-10) - f(3).

$-\frac{3}{2}(-10) + 12 - [-5(3)] + 12\\\\15 + 12 - [-5(3)] + 12\\\\15 + 12 - (-15) + 12\\\\27 - (-15) + 12\\\\42 + 12\\\\54$

The value of the expression g(-10) - f(3) is 15.