Question

The angle of triangle are 3x-2,2{x+1}and 10{x+12}find the valu of x

Answer 1

sum of the interior angles of triangle is equal to 180°

$(3x - 2) + 2(x + 1) + 10(x + 12) = 180 \\ 3x - 2 + 2x + 2 + 10x + 120 = 180 \\ 15x + 120 = 180 \\ 15x = 180 - 120 \\ 15x = 60 \\ x = \frac{60}{15} \\ x = 4$

hope you understand the method

Answer 2

Answer:

I hope it is helpful.........................