Question

Упростите выражения: 1) 2х +3х 2) 7х - 4х 3) х +4х + 5х 4) 9у + 2у - 4у

Answer 1

Надіюсь, почерк розбереш:)

Answer 2

1)5х
2) 3х
3) 10х
4) 7у

Answer 3

To simplify the given expressions, we can combine like terms by adding or subtracting the coefficients of the same variable. Let's simplify each expression step by step:

1) 2x + 3x To simplify this expression, we add the coefficients of the like terms: 2x + 3x = 5x

2) 7x - 4x Similarly, for this expression, we subtract the coefficients of the like terms: 7x - 4x = 3x

3) x + 4x + 5x Combining the coefficients of the like terms gives us: x + 4x + 5x = 10x

4) 9y + 2y - 4y Following the same process for the variable y, we get: 9y + 2y - 4y = 7y

So, after simplifying the given expressions, we have: 1) 2x + 3x = 5x 2) 7x - 4x = 3x 3) x + 4x + 5x = 10x 4) 9y + 2y - 4y = 7y