Question

Помагите решить уравнения, 1 пример 3d+5a-4d+a. 2 пример, 3(x-5)-7(x+1). 3 пример, 2(х-у)+2(2x-3y). 4 пример, -3+5-(2x-2)

Answer 1

1)-d+6a
2)3x-15-7x-7=-4x-22
3)2x-2y+4x-6y=6x-8y
4)-3+5-2x+2=-2x+4

Answer 2

I can help you solve equations. Here are the steps and solutions for each example:

1. 3d + 5a - 4d + a = 0 - Combine the like terms: -d + 6a = 0 - Isolate one variable: -d = -6a - Divide by the coefficient: d = 6a - The solution is d = 6a

2. 3(x - 5) - 7(x + 1) = 0 - Distribute the coefficients: 3x - 15 - 7x - 7 = 0 - Combine the like terms: -4x - 22 = 0 - Add 22 to both sides: -4x = 22 - Divide by -4: x = -5.5 - The solution is x = -5.5

3. 2(x - y) + 2(2x - 3y) = 0 - Distribute the coefficients: 2x - 2y + 4x - 6y = 0 - Combine the like terms: 6x - 8y = 0 - Divide by 2: 3x - 4y = 0 - Isolate one variable: 3x = 4y - Divide by 3: x = (4/3)y - The solution is x = (4/3)y

4. -3 + 5 - (2x - 2) = 0 - Simplify the parentheses: -3 + 5 - 2x + 2 = 0 - Combine the like terms: 4 - 2x = 0 - Subtract 4 from both sides: -2x = -4 - Divide by -2: x = 2 - The solution is x = 2

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