2.5z-1.5z+8.7=7.2

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Solution for 2.5z-1.5z+8.7=7.2 equation:


Simplifying
2.5z + -1.5z + 8.7 = 7.2

Reorder the terms:
8.7 + 2.5z + -1.5z = 7.2

Combine like terms: 2.5z + -1.5z = 1z
8.7 + 1z = 7.2

Solving
8.7 + 1z = 7.2

Solving for variable 'z'.

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

Add '-8.7' to each side of the equation.
8.7 + -8.7 + 1z = 7.2 + -8.7

Combine like terms: 8.7 + -8.7 = 0.0
0.0 + 1z = 7.2 + -8.7
1z = 7.2 + -8.7

Combine like terms: 7.2 + -8.7 = -1.5
1z = -1.5

Divide each side by '1'.
z = -1.5

Simplifying
z = -1.5

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