Question

2x+13-22+3x 3x-(10-9x)-22x 21x+45-15+14x 13x+40=2x+7 25-(7-2x)-5x 5-3x=2x-8 2x+40=x+14 14x+5x=4x+3 15x+31= -7+4x 3x-12=8x+13

Answer 1

Ответ:

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Answer 2

It seems like you've provided a list of equations. Let's solve them one by one:

1. 2x + 13 - 22 + 3x = 2x + 7 Combine like terms: 5x - 9 = 2x + 7 Subtract 2x from both sides: 3x - 9 = 7 Add 9 to both sides: 3x = 16 Divide by 3: x = 16 / 3

2. 3x - (10 - 9x) - 22x = 0 First, simplify the expression inside the parentheses: 3x - (10 + 9x) - 22x = 0 Distribute the negative sign inside the parentheses: 3x - 10 - 9x - 22x = 0 Combine like terms: -28x - 10 = 0 Add 10 to both sides: -28x = 10 Divide by -28 (remember that dividing by a negative number flips the inequality): x = -10 / -28 x = 5/14

3. 21x + 45 - 15 + 14x = 0 Combine like terms: 35x + 30 = 0 Subtract 30 from both sides: 35x = -30 Divide by 35: x = -30 / 35 Simplify the fraction: x = -6/7

4. 13x + 40 = 2x + 7 Subtract 2x from both sides: 11x + 40 = 7 Subtract 40 from both sides: 11x = -33 Divide by 11: x = -33 / 11 Simplify the fraction: x = -3

5. 25 - (7 - 2x) - 5x = 0 First, simplify the expression inside the parentheses: 25 - 7 + 2x - 5x = 0 Combine like terms: 18 - 3x = 0 Add 3x to both sides: 18 = 3x Divide by 3: x = 18 / 3 x = 6

6. 5 - 3x = 2x - 8 Add 3x to both sides: 5 = 5x - 8 Add 8 to both sides: 13 = 5x Divide by 5: x = 13 / 5 Simplify the fraction: x = 2.6

7. 2x + 40 = x + 14 Subtract x from both sides: x + 40 = 14 Subtract 40 from both sides: x = 14 - 40 x = -26

8. 14x + 5x = 4x + 3 Combine like terms on both sides: 19x = 4x + 3 Subtract 4x from both sides: 15x = 3 Divide by 15: x = 3 / 15 Simplify the fraction: x = 1/5

9. 15x + 31 = -7 + 4x Subtract 4x from both sides: 15x - 4x + 31 = -7 Combine like terms: 11x + 31 = -7 Subtract 31 from both sides: 11x = -7 - 31 11x = -38 Divide by 11: x = -38 / 11

10. 3x - 12 = 8x + 13 Subtract 8x from both sides: 3x - 8x - 12 = 13 Combine like terms: -5x - 12 = 13 Add 12 to both sides: -5x = 13 + 12 -5x = 25 Divide by -5: x = 25 / -5 x = -5

So, those are the solutions to the equations.