Answer:
X = 5
Step-by-step explanation:
So what the equation is saying is that f(x) = g(x) so these equations are equal
The equation will look like this
125 + 15x = 12x + 140
I first began with subtracting the 12x from the 15x which will give you 3x
125 + 3x = 140
now we subtract 125 to 140 and you'll get 15
140-125 = 15 now divide by 3 leaving the x solo
15/3 = 5 so x is 5
hope that helps
