Question

a) 5x-3=4x+9


b) 12x+100= -20


c) 2x-4-8=4x


d) 4x-15= -2x + 3


e) 7(x-5)= 3 (x+1)


f) 5(x+1)-3(x+2)=0


g)3(x-2)=4(-x+3)

Answer 1

A) 5x-3=4x+9 5x -4x= 9 +3 X = 12 b) 12x+100= -20 12x=-20-100 X=-120 c) 2x-4-8=4x -12=4x-2x -12= 2x X=-12/2 X=-6 d) 4x-15= -2x + 3 4x+2x=3+15 6x=18 X= 3 e) 7(x-5)= 3 (x+1) 7x-35 = 3x + 1 7x -3x = 1+35 4x=36 X=9 f) 5(x+1)-3(x+2)=0 5x + 1 -3x -6=0 5x-3x=6-1 2x = 5 X=5/2 g)3(x-2)=4(-x+3) 3x-6=-4x+12 3x+4x =12+6 7x = 18 X=18/7