Question

-3×(4,5х-2,5)+5×(6,5х-2)

Answer 1

Ответ:

-3×(4,5х-2,5)+5×(6,5х-2)=-3×2х+5×4,5х=-6х+22,5х=22,5х-6х=16,5х

Answer 2

To simplify the expression -3×(4.5x - 2.5) + 5×(6.5x - 2), you can distribute the constants outside the parentheses and then combine like terms. Here's the step-by-step simplification:

-3×(4.5x - 2.5) + 5×(6.5x - 2)

First, distribute the constants:

= (-3×4.5x + 3×2.5) + (5×6.5x - 5×2)

Now, multiply each term:

= (-13.5x + 7.5) + (32.5x - 10)

Now, combine like terms:

= (-13.5x + 32.5x) + (7.5 - 10)

Combine the x-terms and the constant terms separately:

= 19x - 2.5

So, the simplified expression is 19x - 2.5.