z+9=2.1(4)

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Solution for z+9=2.1(4) equation: 


Simplifying
z + 9 = 2.1(4)

Reorder the terms:
9 + z = 2.1(4)

Multiply 2.1 * 4
9 + z = 8.4

Solving
9 + z = 8.4

Solving for variable 'z'.

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

Add '-9' to each side of the equation.
9 + -9 + z = 8.4 + -9

Combine like terms: 9 + -9 = 0
0 + z = 8.4 + -9
z = 8.4 + -9

Combine like terms: 8.4 + -9 = -0.6
z = -0.6

Simplifying
z = -0.6

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