Question

Раскрой скобки и упрости выражение: −(8x+8,9y)−(−5,4x−13y)= ___x +___y

Answer 1

-8y-8,9y+5,4x+13y=5,4x-3.9y
вроде бы так

Answer 2

To simplify the expression and remove the brackets, we distribute the negative sign to each term inside the first set of brackets and the second set of brackets:

−(8x + 8.9y) − (−5.4x − 13y) = −8x − 8.9y + 5.4x + 13y

Now, we can combine like terms by adding or subtracting coefficients of the same variables:

−8x + 5.4x − 8.9y + 13y = (−8x + 5.4x) + (−8.9y + 13y) = −2.6x + 4.1y

Therefore, the simplified expression is: −(8x + 8.9y) − (−5.4x − 13y) = −2.6x + 4.1y