Question

resolva as equações A) 3X-7=2X+5 B) 7X+8=4X-10 C) 4X-15=-2X+3 D) 2X-4-8=4X

Answer 1

A) 3x-7=2x+5
3x-2x=+5+7
X= 12

B) 7x+8=4x-10
7x-4x= -10-8
3x= -18
X= -18/3
X=6

C)4x-15= -2x+3
4x+2x=3+15
6x=18
X=18/6
X=3