Question

(3m-7) × 0,6 - 0,8×(4m-5) - (-1,7 - 1,4m)=1,5

Answer 1

1,8m-4,2-3,2m+4+1,7+1,4m=1,5
1,8m-3,2m+1,4m=1,5+4,2-4-1,7
0=0

Answer 2

To solve the equation (3m - 7) × 0.6 - 0.8 × (4m - 5) - (-1.7 - 1.4m) = 1.5, you can follow these steps:

1. First, distribute the constants to their respective terms within the parentheses: 0.6 * (3m - 7) - 0.8 * (4m - 5) + (1.7 + 1.4m) = 1.5

2. Next, apply the distributive property by multiplying each term within the parentheses: (0.6 * 3m - 0.6 * 7) - (0.8 * 4m - 0.8 * 5) + (1.7 + 1.4m) = 1.5

3. Simplify each term: (1.8m - 4.2) - (3.2m - 4) + 1.7 + 1.4m = 1.5

4. Combine like terms: (1.8m - 4.2 - 3.2m + 4 + 1.4m) + 1.7 = 1.5

5. Continue to combine like terms: (1.8m - 3.2m + 1.4m - 4.2 + 4) + 1.7 = 1.5

6. Simplify further: (0m - 0.2) + 1.7 = 1.5

7. Simplify again: 1.7 - 0.2 = 1.5

8. Finally, solve for m: 1.5 = 1.5

Since the equation simplifies to 1.5 = 1.5, this equation is true for all values of m. In other words, m can be any real number, and the equation will still be satisfied.