Question

1)12x-1=352)-x+4=473)1,3x=54+x4)7=6-0,2x5)0,15x+6=516)-0,7x+2=65

Answer 1

Решение:
1)
12х-1=35
12х=36
х=3
2)
-х+4=54+х
-2х=50
х=-25
3)
1,3х=54+х
0,3х=54
х=180
4)
7=6-0,2х
0,2х=-1
х=-5
5)
0,15х+6=51
0,15х=45
х=300
6)
-0,7х+2=65
-0,7х=63
х=-90

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Answer 2

It looks like you've provided a list of linear equations. I can help you solve them. Here are the solutions to each of the equations:

1. 12x - 1 = 35 Add 1 to both sides: 12x = 36 Divide by 12: x = 3

2. -x + 4 = 47 Subtract 4 from both sides: -x = 43 Multiply by -1 to isolate x: x = -43

3. 1.3x = 54 + x Subtract x from both sides: 0.3x = 54 Divide by 0.3: x = 180

4. 7 = 6 - 0.2x Subtract 6 from both sides: 7 - 6 = -0.2x 1 = -0.2x Divide by -0.2 to isolate x: x = -5

5. 0.15x + 6 = 51 Subtract 6 from both sides: 0.15x = 45 Divide by 0.15: x = 300

6. -0.7x + 2 = 6 Subtract 2 from both sides: -0.7x = 4 Divide by -0.7 to isolate x: x = -4/0.7 (which can be simplified to x ≈ -5.71)

These are the solutions for the given equations.