Question

50a-(70-100a)+(90-75a)×2

Answer 1

50а-70+100а+90*2-75а*2=150а-150а-70+180=180-70=110
Рад помочь!

Answer 2

Let's simplify the expression step by step:

50a - (70 - 100a) + (90 - 75a) × 2

First, let's simplify the expressions within the parentheses:

= 50a - (70 - 100a) + (90 - 75a) × 2 = 50a - (70 - 100a) + (90 - 75a) × 2 = 50a - (70 - 100a) + 2(90 - 75a)

Next, we can simplify the expressions inside the parentheses:

= 50a - 70 + 100a + 2(90 - 75a)

Now, let's distribute the 2 to the terms inside the parentheses:

= 50a - 70 + 100a + 2 * 90 - 2 * 75a = 50a - 70 + 100a + 180 - 150a

Combine like terms:

= (50a + 100a - 150a) - 70 + 180 = 0a - 70 + 180 = -70 + 180 = 110

Therefore, the simplified expression is 110.