3z+z+3=7

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Solution for 3z+z+3=7 equation: 


Simplifying
3z + z + 3 = 7

Reorder the terms:
3 + 3z + z = 7

Combine like terms: 3z + z = 4z
3 + 4z = 7

Solving
3 + 4z = 7

Solving for variable 'z'.

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

Add '-3' to each side of the equation.
3 + -3 + 4z = 7 + -3

Combine like terms: 3 + -3 = 0
0 + 4z = 7 + -3
4z = 7 + -3

Combine like terms: 7 + -3 = 4
4z = 4

Divide each side by '4'.
z = 1

Simplifying
z = 1

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