Question

Упростите выражение: -7x-12y+4x+13y

Answer 1

-7x-12y+4x+13y = -3х+y

Answer 2

I can help you with math problems. To simplify the expression, you need to combine the like terms. Like terms are terms that have the same variable and the same exponent. In this case, the like terms are -7x and 4x, and -12y and 13y. To combine them, you need to add or subtract their coefficients. The coefficient is the number in front of the variable. For example, the coefficient of -7x is -7. So, to simplify the expression, you do the following:

$$-7x-12y+4x+13y=(-7+4)x+(-12+13)y$$

$$=(-3)x+(1)y$$

$$=-3x+y$$

The simplified expression is $$-3x+y$$.