Question

3(5z-7)+2(9z-11)=4(8z-7)-111 solve and check the result​

Answer 1

3 ( 5z - 7 ) + 2 ( 9z - 11 ) = 4 ( 8z - 7 ) - 111

solution

15z - 21 + 2 ( 9z - 11 ) = 4 ( 8z - 7 ) - 111

15z - 21 + 18z - 22 = 4 ( 8z - 7 ) - 111

33z - 21 - 22 = 4 ( 8z - 7 ) - 111

33z - 43 = 4 ( 8z - 7 ) - 111

33z - 43 = 32z - 28 - 111

33z - 43 = 32z - 139

33z - 43 - 32z = - 139

z - 43 = - 139

z = - 139 + 43

z = - 96