Answer:
[tex]\boxed{x=11}[/tex]
Step-by-step explanation:
In order to solve this equation, we need to know that both values add up to make a supplementary angle, or a 180° angle. Therefore, adding the values and setting them equal to 180 will solve for x.
[tex]7x + 33 + 70 = 180[/tex] Add like terms to simplify the equation.
[tex]7x + 103 = 180[/tex] Subtract 103 from both sides of the equation.
[tex]7x = 77[/tex] Divide by 7 on both sides of the equation to isolate the variable.
[tex]\boxed{x=11}[/tex]
