Question

2а-7+2а= -2а+а-7+14= 2х+4+3х+8=

Answer 1

Ответ:

1)4a-7

2)-a+7

3)5x+12

Пошаговое объяснение:

Answer 2

2a - 7 + 2a

To simplify this expression, we need to combine like terms. Here, we have two terms with the variable 'a': 2a and 2a. We can combine these terms by adding their coefficients: 2a + 2a = 4a.

Therefore, the expression becomes: 4a - 7.

Next, let's simplify the expression: -2a + a - 7 + 14.

Again, we have two terms with the variable 'a': -2a and a. We can combine these terms by adding their coefficients: -2a + a = -a.

Therefore, the expression becomes: -a - 7 + 14.

Now, let's simplify further: -a - 7 + 14.

We need to combine the constants: -7 + 14 = 7.

Therefore, the expression becomes: -a + 7.

Moving on, let's simplify: 2x + 4 + 3x + 8.

We have two terms with the variable 'x': 2x and 3x. We can combine these terms by adding their coefficients: 2x + 3x = 5x.

Therefore, the expression becomes: 5x + 4 + 8.

Now, let's simplify further: 5x + 4 + 8.

We need to combine the constants: 4 + 8 = 12.

Therefore, the expression becomes: 5x + 12.

In summary, the simplified expressions are:

2a - 7 + 2a = 4a - 7 -2a + a - 7 + 14 = -a + 7 2x + 4 + 3x + 8 = 5x + 12