Question

Розкрийте дужки та спростіть вираз 1)-(8,8-х)-(4,7+х) 2)(а-b+6,1)-(-a-b+6,1)

Answer 1

Ответ:

1) готово

2)готово

Пошаговое объяснение:

приложение называеться Photomath

Answer 2

1. Let's simplify the expression step by step:

Original expression: (1) - (8,8 - x) - (4,7 + x)

Step 1: Distribute the negative sign inside the first parentheses: (1) - 8,8 + x - (4,7 + x)

Step 2: Simplify the expression inside the second parentheses: (1) - 8,8 + x - 4,7 - x

Step 3: Combine like terms (x and -x cancel out): 1 - 8,8 - 4,7

Step 4: Subtract the decimals: 1 - 13,5

Step 5: Final result: -12,5

2. Now, let's simplify the second expression step by step:

Original expression: (a - b + 6,1) - (-a - b + 6,1)

Step 1: Distribute the negative sign inside the second parentheses: a - b + 6,1 + a + b - 6,1

Step 2: Combine like terms (a and -a, b and -b cancel out): 2a

Step 3: Final result: 2a