2.1z=1.2z-9

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Solution for 2.1z=1.2z-9 equation: 


Simplifying
2.1z = 1.2z + -9

Reorder the terms:
2.1z = -9 + 1.2z

Solving
2.1z = -9 + 1.2z

Solving for variable 'z'.

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

Add '-1.2z' to each side of the equation.
2.1z + -1.2z = -9 + 1.2z + -1.2z

Combine like terms: 2.1z + -1.2z = 0.9z
0.9z = -9 + 1.2z + -1.2z

Combine like terms: 1.2z + -1.2z = 0.0
0.9z = -9 + 0.0
0.9z = -9

Divide each side by '0.9'.
z = -10

Simplifying
z = -10

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