Question

Simplify the expression by combining like terms: x + 7x

Answer 1

Like terms means that the numbers have the same variable after them or they don't have a variable at all. It is also important to remember that any letter that doesn't have a number in front of it technically has a 1 in front of it.

For example, x + 3x = 1x +3x. Then I add the numbers in the front and I get 4x.

If it had been 4x + 7x + 3, my answer would have been 11x +3. That's because there were a total of 11 x, but the 3 ones weren't x's so I just leave them alone.

Explanation:

Answer 2

`8x`

Explanation:

`x+7x`

`8x`

The answer is
`8x` when you simplify because you are adding another
`x` to
`7x` so it becomes
`8x`

Hope this is helpful