z-(-7)=4.5

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Solution for z-(-7)=4.5 equation: 


Simplifying
z + -1(-7) = 4.5

Multiply -1 * -7
z + 7 = 4.5

Reorder the terms:
7 + z = 4.5

Solving
7 + z = 4.5

Solving for variable 'z'.

Move all terms containing z to the left, all other terms to the right.

Add '-7' to each side of the equation.
7 + -7 + z = 4.5 + -7

Combine like terms: 7 + -7 = 0
0 + z = 4.5 + -7
z = 4.5 + -7

Combine like terms: 4.5 + -7 = -2.5
z = -2.5

Simplifying
z = -2.5

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