Question

3х – 7 = 2х – 8; 3 – 4х = 5 – 3х; 4(х – 2) = 2х; – (3х – 2) = – х; 3(х + 2) = 2(х – 1); 2(– х – 5) = – (х + 1); –5(3 – х) = 6(х + 1); 2(0,4х – 3) – 5(0,2х – 3) = 8,84.

Answer 1

1) -1х.
2) х = -2
3) х= 4
4) х= 1
5) х= -8
6) х= -9
7) х= -21
8) х= 0,8
Не перепутай номера примеров

Answer 2

Ответ:

3х-7=2х-8

х=-1

3-4х=5-3х

-х=2

х=-2

4(х-2)=2х

4х-8=2х

2х=8

х=4

-(3х-2)=-х

-3х+2=-х

-2х=-2

х=1

3(х-2)=2(х-1)

3х-6=2х-2

х=4

2(-х-5)=-(х+1)

-2х-10=-х-1

-х=9

х=-9

-5(3-х)=6(х+1)

-15+5х=6х+6

-х=21

х=-21

2(0,4х-3)-5(0,2х-3)=8,84

0,8х-6-х+15=8,84

-0,2х=-0,16

х=0,8

Пошаговое объяснение:

подпишись если не сложно цель 50 подписчиков удачи ;)

Answer 3

Let's solve each of these equations step by step:

1. 3x - 7 = 2x - 8 Subtract 2x from both sides: x - 7 = -8 Add 7 to both sides: x = -8 + 7 x = -1

2. 3 - 4x = 5 - 3x Add 4x to both sides: 3 = 5 - 3x + 4x 3 = 5 + x Subtract 5 from both sides: 3 - 5 = x -2 = x

3. 4(x - 2) = 2x Distribute the 4 on the left side: 4x - 8 = 2x Subtract 2x from both sides: 4x - 2x - 8 = 2x - 2x 2x - 8 = 0 Add 8 to both sides: 2x - 8 + 8 = 0 + 8 2x = 8 Divide by 2: 2x/2 = 8/2 x = 4

4. -(3x - 2) = -x Distribute the negative sign on the left side: -3x + 2 = -x Add 3x to both sides: -3x + 2 + 3x = -x + 3x 2 = 2x Divide by 2: 2/2 = 2x/2 1 = x

5. 3(x + 2) = 2(x - 1) Distribute on both sides: 3x + 6 = 2x - 2 Subtract 2x from both sides: 3x - 2x + 6 = 2x - 2x - 2 x + 6 = -2 Subtract 6 from both sides: x + 6 - 6 = -2 - 6 x = -8

6. 2(-x - 5) = -(x + 1) Distribute on both sides: -2x - 10 = -x - 1 Add x to both sides: -2x + x - 10 = -x + x - 1 -x - 10 = -1 Add 10 to both sides: -x - 10 + 10 = -1 + 10 -x = 9 Multiply by -1 to isolate x: -x * (-1) = 9 * (-1) x = -9

7. -5(3 - x) = 6(x + 1) Distribute on both sides: -15 + 5x = 6x + 6 Subtract 6x from both sides: -15 + 5x - 6x = 6x - 6x + 6 -15 - x = 6 Add x to both sides: -15 - x + x = 6 + x -15 = 6 + x Subtract 6 from both sides: -15 - 6 = 6 - 6 + x -21 = x

8. 2(0.4x - 3) - 5(0.2x - 3) = 8.84 Distribute on both sides: 0.8x - 6 - 1x + 15 = 8.84 Combine like terms: (0.8x - 1x) + (-6 + 15) = 8.84 -0.2x + 9 = 8.84 Subtract 9 from both sides: -0.2x + 9 - 9 = 8.84 - 9 -0.2x = -0.16 Divide by -0.2: -0.2x / -0.2 = -0.16 / -0.2 x = 0.8

So, the solutions to the equations are as follows:

1. x = -1
2. x = -2
3. x = 4
4. x = 1
5. x = -8
6. x = -9
7. x = -21
8. x = 0.8