7x-3z-4z=28

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Solution for 7x-3z-4z=28 equation: 


Simplifying
7x + -3z + -4z = 28

Combine like terms: -3z + -4z = -7z
7x + -7z = 28

Solving
7x + -7z = 28

Solving for variable 'x'.

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

Add '7z' to each side of the equation.
7x + -7z + 7z = 28 + 7z

Combine like terms: -7z + 7z = 0
7x + 0 = 28 + 7z
7x = 28 + 7z

Divide each side by '7'.
x = 4 + z

Simplifying
x = 4 + z

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