z-2.1z-3.5=6.5(z+2.2)

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Solution for z-2.1z-3.5=6.5(z+2.2) equation:


Simplifying
z + -2.1z + -3.5 = 6.5(z + 2.2)

Reorder the terms:
-3.5 + z + -2.1z = 6.5(z + 2.2)

Combine like terms: z + -2.1z = -1.1z
-3.5 + -1.1z = 6.5(z + 2.2)

Reorder the terms:
-3.5 + -1.1z = 6.5(2.2 + z)
-3.5 + -1.1z = (2.2 * 6.5 + z * 6.5)
-3.5 + -1.1z = (14.3 + 6.5z)

Solving
-3.5 + -1.1z = 14.3 + 6.5z

Solving for variable 'z'.

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

Add '-6.5z' to each side of the equation.
-3.5 + -1.1z + -6.5z = 14.3 + 6.5z + -6.5z

Combine like terms: -1.1z + -6.5z = -7.6z
-3.5 + -7.6z = 14.3 + 6.5z + -6.5z

Combine like terms: 6.5z + -6.5z = 0.0
-3.5 + -7.6z = 14.3 + 0.0
-3.5 + -7.6z = 14.3

Add '3.5' to each side of the equation.
-3.5 + 3.5 + -7.6z = 14.3 + 3.5

Combine like terms: -3.5 + 3.5 = 0.0
0.0 + -7.6z = 14.3 + 3.5
-7.6z = 14.3 + 3.5

Combine like terms: 14.3 + 3.5 = 17.8
-7.6z = 17.8

Divide each side by '-7.6'.
z = -2.342105263

Simplifying
z = -2.342105263

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