Question

(х-2)×3,5-4×(х-5)-(25-0,5х)

Answer 1

3,5x-7-4x+20-25+0,5x=4x-4x-12=0-12=-12

Answer 2

To simplify the expression, let's perform the calculations step by step:

1. Distribute the numbers inside the parentheses: (х - 2) × 3.5 - 4 × (х - 5) - (25 - 0.5х)

Expanding the first parentheses: 3.5х - 7 - 4 × (х - 5) - (25 - 0.5х)

2. Distribute the -4 in the second set of parentheses: 3.5х - 7 - 4х + 20 - (25 - 0.5х)

3. Combine like terms: (3.5х - 4х) + (-7 + 20) - (25 - 0.5х)

Simplify within each set of parentheses: -0.5х + 13 - 25 + 0.5х

4. Combine the remaining like terms: (-0.5х + 0.5х) + (13 - 25)

The х terms cancel out, leaving only the constant terms: 0 + (-12)

5. Finally, calculate the result: -12

So, the simplified expression is -12.