Question

resolva as equaçoes pfv : to presissndo de verdsde.urgente obg.

2(2x+7)+3(3x-5)=3(4x+5)-1

3-7(1-2x)=5-(X+9)

(1+3x)-(1-2x)+(-11-7x)=5

Answer 1

2(2x+7)+3(3x-5)=3(4x+5)-1
4x +14 +9x -15 = 12x +15 -1
4x +9x -12x = 15 +15 -1 -14
13x -12x = 30 -15
x = 15

S{15}

3-7(1-2x)=5-(X+9)
3 -7 +14x = 5 -x -9
14x +x = 5 +7 -9 -3
15x = 12 -12
15x= 0
x= 0/15
x= 0

S{0}

(1+3x)-(1-2x)+(-11-7x)=5
1 +3x -1 +2x -11 -7x = 5
3x +2x -7x = 5 +1 +11 -1
5x -7x = 17 -1
-2x = 16.(-1)
2x = -16
x= -16/2
x= -8

S{-8}