Answer:
x=45
Step-by-step explanation:
We know that the two angles are supplementary angles. This means that they add up to 180.
(4x-52)+(x+7)=180
We can open the prentices and simplify.
5x-45=180
We can add 45 to both sides of the equation.
5x=225
We can divide by 5 to find x.
x=45
