Answer:
Step-by-step explanation:
The rule with like bases is that when you multiply them you add their exponents.

Therefore, our final simplification is

Isolate the variable by dividing each side by factors that don't contain the variable.
-6x-15+15=4x+35+15
-6x=4x+50
(Subtract 4 on both sides)
-10x=50
(Divide by 10 on both sides)
x=5