Question 378435
"the perimters of the square and the triangle are equal" ___ 4y = 3(x-y)


"three times the perimter of the square exceeds twice the perimter of the triangle by 24" ___ 3(4y) = 2[3(x-y)] + 24


use substitution to find y ___ substitute 4y for 3(x-y) (in the 2nd equation)


then use the value of y to find the value of x (in the 1st equation)