Question

5) 9х-2=4(х+7) ;

; 7) 8(9+2х)-5(1-3х)=5;

Answer 1

5) 9х - 2 = 4х + 28
5х = 30
х = 6

7) 72 + 16х - 5 + 15х = 5
62 = -31х
х = -2