Question

3х - 2 + 7х - у СРОЧНО!!!! 2,5 - а - b + 4а - с - 9а 25х - 25 + 30 + 3х = 28х – 5

Answer 1

Ответ: 3x-2+7x

3x+7x=10x

10x-2=8x

Пошаговое объяснение:

Просто ікси додаєш,а потім те що залишилося віднімаєш і ось тобі відповідь

Answer 2

Let's simplify the given expressions step by step:

1. 3x - 2 + 7x - y: Combine like terms (terms with the same variable) by adding their coefficients: 3x + 7x = 10x So the expression becomes: 10x - 2 - y

2. 2.5 - a - b + 4a - c - 9a: Combine like terms:

• a + 4a - 9a = -6a So the expression becomes: 2.5 + (-6a) - b - c

3. 25x - 25 + 30 + 3x: Combine like terms: 25x + 3x = 28x 30 - 25 = 5 So the expression becomes: 28x + 5

Now, we have three simplified expressions:

1. 10x - 2 - y
2. 2.5 - 6a - b - c
3. 28x + 5

There doesn't seem to be any specific equation given, so we cannot solve for any specific values of x, y, a, b, or c without further information. If you have an equation or additional context, please provide it, and I'll be glad to assist further.