me ajuda 3(2x+7)=7+4(x+4)=
2(8x+2)=28-7(x+3)
15(x+7)-35=8(x+7)
6x-7(1-x)-(10x+4)=0
x-2(x-1)=4-3(X-2)
Soluções para a tarefa
Resposta:
x = 1
x = 3/23
x = - 2
x = 11/3
x = 4
Explicação passo-a-passo:
3(2x+7)=7+4(x+4)
6x + 21 = 7 + 4x + 16
6x - 4x = 23 - 21
x = 1
=============================
2(8x+2)=28-7(x+3)
16x + 4 = 28 - 7x - 21
16x + 7x = 7 - 4
x = 3 / 23
=============================
15(x+7)-35=8(x+7)
15x+ 105 - 35 = 8x + 56
15x + 70 = 8x + 56
15x - 8x = 56 - 70
7x = -14
x = - 2
=============================
6x-7(1-x)-(10x+4)=0
6x -7 +7x - 10x - 4 = 0
13x-10x - 11 = 0
3x = 11
x = 11/3
==============================
x-2(x-1)=4-3(X-2)
x - 2x +2 = 4 - 3x + 6
-x + 2 = -3x + 10
-x+ 3x = 10-2
2x = 8
x = 4
3(2x+7)=7+4(x+4)
6x + 21 = 7 + 4x + 16
6x - 4x = 23 - 21
x = 1
=============================
2(8x+2)=28-7(x+3)
16x + 4 = 28 - 7x - 21
16x + 7x = 7 - 4
x = 3 / 23
=============================
15(x+7)-35=8(x+7)
15x+ 105 - 35 = 8x + 56
15x + 70 = 8x + 56
15x - 8x = 56 - 70
7x = -14
x = - 2
=============================
6x-7(1-x)-(10x+4)=0
6x -7 +7x - 10x - 4 = 0
13x-10x - 11 = 0
3x = 11
x = 11/3
==============================
x-2(x-1)=4-3(X-2)
x - 2x +2 = 4 - 3x + 6
-x + 2 = -3x + 10
-x+ 3x = 10-2
2x = 8
x = 4