Question

ПОМОГИТЕ РЕШИТЬ УРОВНЕНИЯ 1) 2x+9=x+3 2)3x-4=x+2 3)5-2x=11-3x 4)2x+4=-x-5 5)x+5=4x-1 6)2x-1=3x-8 7)11-x=2-4x 8)2-3x=30-7x

Answer 1

1)2x+9=x+3 2x-x=3-9 X=-6 2)3x-4=x+2 3x-x=2+4 2x=6 X=3 3)5-2x=11-3x 3x-2x=11-5 X=6 4)2x+4=-x-5 2x+x=-5-4 3x=-9 X=-3 5)x+5=4x-1 5+1=4x-x 6=3x X=2 6(2x-1=3x-8 8-1=3x-2x 7=x 7)11-x=2-4x 4x-x=2-11 3x=-9 X=-3 8)2-3x=30-7x 7x-3x=30-2 4x=28 X=7

Answer 2

1)2х+9=х+3 2х-х=3-9 Х=-6 2)3х-4=х+2 3х-х=2+4 2х=6 Х=3 3)5-2х=11-3х -2х+3х=11-5 Х=6 4)2х+4=-х-5 2х+х=-5-4 3х=-9 Х=-2 5)х+5=4х-1 Х-4х=-1-5 -3х=-6 Х=2 6)2х-1=3х-8 2х-3х=-8+1 -х=-7 Х=7 7)11-х=2-4х -х+4х=2-11 3х=-9 Х=-3 8)2-3х=30-7х -3х+7х=30-2 4х=28 Х=7

Answer 3

1) 2x + 9 = x + 3 To solve for x, we can first subtract x from both sides: 2x - x + 9 = x - x + 3 This simplifies to: x + 9 = 3 Next, we can subtract 9 from both sides: x + 9 - 9 = 3 - 9 Which simplifies to: x = -6

2) 3x - 4 = x + 2 To solve for x, we can first subtract x from both sides: 3x - x - 4 = x - x + 2 This simplifies to: 2x - 4 = 2 Next, we can add 4 to both sides: 2x - 4 + 4 = 2 + 4 Which simplifies to: 2x = 6 Finally, we can divide both sides by 2: 2x / 2 = 6 / 2 Which simplifies to: x = 3

3) 5 - 2x = 11 - 3x To solve for x, we can first add 3x to both sides: 5 - 2x + 3x = 11 - 3x + 3x This simplifies to: 5 + x = 11 Next, we can subtract 5 from both sides: 5 + x - 5 = 11 - 5 Which simplifies to: x = 6

4) 2x + 4 = -x - 5 To solve for x, we can first add x to both sides: 2x + x + 4 = -x + x - 5 This simplifies to: 3x + 4 = -5 Next, we can subtract 4 from both sides: 3x + 4 - 4 = -5 - 4 Which simplifies to: 3x = -9 Finally, we can divide both sides by 3: 3x / 3 = -9 / 3 Which simplifies to: x = -3

5) x + 5 = 4x - 1 To solve for x, we can first subtract x from both sides: x - x + 5 = 4x - x - 1 This simplifies to: 5 = 3x - 1 Next, we can add 1 to both sides: 5 + 1 = 3x - 1 + 1 Which simplifies to: 6 = 3x Finally, we can divide both sides by 3: 6 / 3 = 3x / 3 Which simplifies to: 2 = x

6) 2x - 1 = 3x - 8 To solve for x, we can first subtract 2x from both sides: 2x - 2x - 1 = 3x - 2x - 8 This simplifies to: -1 = x - 8 Next, we can add 8 to both sides: -1 + 8 = x - 8 + 8 Which simplifies to: 7 = x

7) 11 - x = 2 - 4x To solve for x, we can first add x to both sides: 11 - x + x = 2 - 4x + x This simplifies to: 11 = 2 - 3x Next, we can subtract 2 from both sides: 11 - 2 = 2 - 2 - 3x Which simplifies to: 9 = -3x Finally, we can divide both sides by -3: 9 / -3 = -3x / -3 Which simplifies to: -3 = x

8) 2 - 3x = 30 - 7x To solve for x, we can first add 7x to both sides: 2 - 3x + 7x = 30 - 7x + 7x This simplifies to: 2 + 4x = 30 Next, we can subtract 2 from both sides: 2 - 2 + 4x = 30 - 2 Which simplifies to: 4x = 28 Finally, we can divide both sides by 4: 4x / 4 = 28 / 4 Which simplifies to: x = 7

So, the solutions for the given equations are: 1) x = -6 2) x = 3 3) x = 6 4) x = -3 5) x = 2 6) x = 7 7) x = -3 8) x = 7