Question

-5×(0.8z-1.2)=-z+7.2

Answer 1

-5×(0.8z-1.2)=-z+7.2-5×(0.8z-1.2)=-z+7.2

Answer 2

To solve the equation -5×(0.8z-1.2)=-z+7.2, you can follow these steps:

1. Distribute the -5 on the left side of the equation: -5 * 0.8z + 5 * 1.2 = -z + 7.2

2. Simplify the equation by performing the multiplications: -4z + 6 = -z + 7.2

3. Move the -z term to the left side of the equation by adding z to both sides: -4z + z + 6 = 7.2

4. Combine like terms on both sides: -3z + 6 = 7.2

5. Subtract 6 from both sides to isolate the -3z term: -3z = 7.2 - 6

6. Simplify the right side: -3z = 1.2

7. Finally, divide both sides by -3 to solve for z: z = 1.2 / -3 z = -0.4

So, the solution to the equation is z = -0.4.