(3x)-7=x+4

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Solution for (3x)-7=x+4 equation:


Simplifying
(3x) + -7 = x + 4

Reorder the terms:
-7 + (3x) = x + 4

Reorder the terms:
-7 + (3x) = 4 + x

Solving
-7 + (3x) = 4 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-7 + (3x) + -1x = 4 + x + -1x

Combine like terms: (3x) + -1x = 2x
-7 + 2x = 4 + x + -1x

Combine like terms: x + -1x = 0
-7 + 2x = 4 + 0
-7 + 2x = 4

Add '7' to each side of the equation.
-7 + 7 + 2x = 4 + 7

Combine like terms: -7 + 7 = 0
0 + 2x = 4 + 7
2x = 4 + 7

Combine like terms: 4 + 7 = 11
2x = 11

Divide each side by '2'.
x = 5.5

Simplifying
x = 5.5

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