Answer:
x=5
Explanation:
The sum of the measures of angle M and angle R is 90°
Given;
•Angle M is (5x+10)°
•Angle R is 55°
The value of x therefore is;
Measure of Angle M + Measure of Angle R = 90°
(5x+10°)+55°=90°(Remove bracket)
5x+10°+55°=90°
5x+65°=90°
5x=90°-65°
5x=25(Divide both sides by 5)
x=5
Therefore the value of x=5