4x+9+7z=31

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Solution for 4x+9+7z=31 equation:


Simplifying
4x + 9 + 7z = 31

Reorder the terms:
9 + 4x + 7z = 31

Solving
9 + 4x + 7z = 31

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + 4x + -9 + 7z = 31 + -9

Reorder the terms:
9 + -9 + 4x + 7z = 31 + -9

Combine like terms: 9 + -9 = 0
0 + 4x + 7z = 31 + -9
4x + 7z = 31 + -9

Combine like terms: 31 + -9 = 22
4x + 7z = 22

Add '-7z' to each side of the equation.
4x + 7z + -7z = 22 + -7z

Combine like terms: 7z + -7z = 0
4x + 0 = 22 + -7z
4x = 22 + -7z

Divide each side by '4'.
x = 5.5 + -1.75z

Simplifying
x = 5.5 + -1.75z

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