3.5z-4=7

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Solution for 3.5z-4=7 equation: 


Simplifying
3.5z + -4 = 7

Reorder the terms:
-4 + 3.5z = 7

Solving
-4 + 3.5z = 7

Solving for variable 'z'.

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

Add '4' to each side of the equation.
-4 + 4 + 3.5z = 7 + 4

Combine like terms: -4 + 4 = 0
0 + 3.5z = 7 + 4
3.5z = 7 + 4

Combine like terms: 7 + 4 = 11
3.5z = 11

Divide each side by '3.5'.
z = 3.142857143

Simplifying
z = 3.142857143

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