Can someone me with this? & you!

Simplifying:  4x + 52 + 8x + -10 = 90  

Reorder the terms:  52 + -10 + 4x + 8x = 90  

Combine like terms: 52 + -10 = 42    42 + 4x + 8x = 90

Combine like terms: 4x + 8x = 12x    42 + 12x = 90  

42 + 12x = 90

Solving for variable 'x'.   Move all terms containing x to the left, all other terms to the right.   Add '-42' to each side of the equation.  42 + -42 + 12x = 90 + -42    Combine like terms: 42 + -42 = 0

0 + 12x = 90 + -42   12x = 90 + -42

Combine like terms: 90 + -42 = 48   12x = 48

Divide each side by '12'.  x = 4     from https://www.geteasysolution.com/4x+52+8x-10=90

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.