My mother is 12 years more than twice my age. after 8 years she will be 20 years less than three times my my age and my mothers age

My present age - x
Mom's age - 2x + 12
My age after 8 yrs - x +8
My mom's age after 8 years - 2x+20

Equation formed-
3(x+8)-20 = 2x+20
3x +24 -20 = 2x +20
x = 20-4 = 16

Therefore, my present age = x = 16 yrs
And my mom's present age = 2x + 12 = 32+12 = 44

Set square i think so