Question

a) -3(x + 2) = 4(x - 1); 6) 2(x + 4) – (3x – 5) = 4x + 3; B) 2(2x - 3) + 4(x - 2) = 3x + 2(2x - 7); r) 6(x – 3) = -5(1 - 2x); A) 4(3 – x) – 2(x + 7) = 5x + 9; e) 3(x + 4) - 2(2x – 5) = 3(6 – 3x) + 12.Решите эти уравнения пжжж даю 15 баллов​

Answer 1

Ответ:

а) -3х-6=4х-4, -7х=2 х= 2/7 ; 6) 2х+8-3х+5=4х+3, -5х=-10, х=2; в) 4х-6+4х-8=3х+4х-14, х=0;  r) 6x-18=-5+10x, -4х=13, х=-13/4 ; А) 12-4х-2х-14=5х+9,  -11х=11 , х=-1 ; e)3х+12-4х+10=18-9х+12, 8х=8, х=1

Объяснение:

а) -3х-6=4х-4, -7х=2 х= 2/7 ; 6) 2х+8-3х+5=4х+3, -5х=-10, х=2; в) 4х-6+4х-8=3х+4х-14, х=0;  r) 6x-18=-5+10x, -4х=13, х=-13/4 ; А) 12-4х-2х-14=5х+9,  -11х=11 , х=-1 ; e)3х+12-4х+10=18-9х+12, 8х=8, х=1

Answer 2

a) -3(x+2) = 4(x-1)

First, distribute the -3 and 4: -3x - 6 = 4x - 4

Add 3x to both sides: -6 = 7x - 4

Add 4 to both sides: -2 = 7x

Divide by 7: x = -2/7

b) 2(2x-3) + 4(x-2) = 3x + 2(2x-7)

First, distribute the 2 and 4 on the left side, and the 2 on the right side: 4x - 6 + 4x - 8 = 3x + 4x - 14

Combine like terms: 8x - 14 = 7x - 14

Subtract 7x from both sides: x - 14 = -14

Add 14 to both sides: x = 0

r) 6(x-3) = -5(1-2x)

First, distribute the 6 and -5: 6x - 18 = -5 + 10x

Add 18 to both sides: 6x = -5 + 10x + 18 6x = 10x + 13

Subtract 10x from both sides: -4x = 13

Divide by -4: x = -13/4

A) 4(3-x) - 2(x+7) = 5x + 9

First, distribute the 4 and -2: 12 - 4x - 2x - 14 = 5x + 9

Combine like terms: -6 - 6x = 5x + 9

Add 6x to both sides: -6 = 11x + 9

Subtract 9 from both sides: -15 = 11x

Divide by 11: x = -15/11

e) 3(x+4) - 2(2x-5) = 3(6-3x) + 12

First, distribute the 3 and -2 on the left side, and the 3 on the right side: 3x + 12 - 4x + 10 = 18 - 9x + 12

Combine like terms: -1x + 22 = 18 - 9x + 12

Add 9x to both sides: 8x + 22 = 18 + 12

Subtract 18 and 12 from both sides: 8x + 22 = 30

Subtract 22 from both sides: 8x = 8

Divide by 8: x = 1

These are the solutions to the given equations.