find the measures of the angels of the triangle

Question

x+(2x+1) +(x+2)

I know that one answer is 42 but I can solve the other answers?

Answer 1

Sum of the angles in triangle is 180°

x + (2x + 10) + (x + 2) = 180

Group like terms

x + 2x + x + 10 + 2 =180

4x + 12 =180

Subtract 12 from each side.

4x + 12 -12 =180 - 12

4x = 168

Divide each side by 4

4x /4 = 168/4

x = 42°

2x + 10 =2(42) +10 = 94°

x + 2 =42 + 2 = 44°

So angles in triangle are 42° , 94°, and 44°.