Question

0,4(а-4)-0,3(а-3)=1,7

Answer 1

0,4(a-4)-0.3(a-3)=1.7
0.4a-1.6-0.3a+0.9=1.7
0.1a=1.7+0.7
0.1a=2.4
a=2.4 : 0.1
a=24 : 1
a=24

Answer 2

To solve the equation 0.4(a - 4) - 0.3(a - 3) = 1.7, you'll need to simplify and isolate the variable 'a'. Here are the steps:

1. Distribute the constants on the left side of the equation: 0.4(a) - 0.4(4) - 0.3(a) + 0.3(3) = 1.7

2. Simplify further: 0.4a - 1.6 - 0.3a + 0.9 = 1.7

3. Combine like terms: (0.4a - 0.3a) + (0.9 - 1.6) = 1.7

4. Combine the 'a' terms and the constant terms separately: 0.1a - 0.7 = 1.7

5. Add 0.7 to both sides to isolate the 'a' term on the left side: 0.1a = 1.7 + 0.7

6. Combine the constants on the right side: 0.1a = 2.4

7. Finally, divide both sides by 0.1 to solve for 'a': a = 2.4 / 0.1 a = 24

So, the solution to the equation is a = 24.