Question

-7*(0,3x-8)=8-3*(0,4x+5)

Answer 1

-2,1x+56=-7-1,2x
-2,1x+1,2x=-7-56
-0,9x=-63
X=70

Answer 2

To solve the equation, let's first distribute the multiplication on both sides of the equation:

-7 * (0.3x - 8) = 8 - 3 * (0.4x + 5)

Now, simplify each side step-by-step:

1. Distribute -7 on the left side: -7 * 0.3x + (-7) * (-8) = 8 - 3 * (0.4x + 5)

2. Simplify: -2.1x + 56 = 8 - 3 * (0.4x + 5)

3. Distribute -3 on the right side: -2.1x + 56 = 8 - 1.2x - 15

4. Combine like terms on the right side: -2.1x + 56 = -7.2 - 1.2x

5. Now, let's isolate the x term on one side. To do this, we'll move all terms with x to the left side and all constant terms to the right side: -2.1x + 1.2x = -7.2 - 56

6. Combine the x terms on the left side: -0.9x = -63.2

7. To solve for x, divide both sides by -0.9: x = -63.2 / -0.9

8. Finally, calculate the value of x: x = 70.222...

So, the solution to the equation is approximately x = 70.222 (rounded to three decimal places).