Answer:
x = -5
Step-by-step explanation:
12x - 3x + 4 = 5x - 16
9x + 4 = 5x - 16
9x - 5x = -4 - 16
4x = -20
x = -5
I'm pretty sure the answer is 33, hope this helps!
Answer:
10
Step-by-step explanation:
1.) Set up an equation
50+80h=310 h stands for hours
-50 - 50
80h= 260
divide 80 to both sides
h=3.25
The mechanic works for 3 hours and 25 minutes