3+4x=7x-18

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Solution for 3+4x=7x-18 equation:


Simplifying
3 + 4x = 7x + -18

Reorder the terms:
3 + 4x = -18 + 7x

Solving
3 + 4x = -18 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
3 + 4x + -7x = -18 + 7x + -7x

Combine like terms: 4x + -7x = -3x
3 + -3x = -18 + 7x + -7x

Combine like terms: 7x + -7x = 0
3 + -3x = -18 + 0
3 + -3x = -18

Add '-3' to each side of the equation.
3 + -3 + -3x = -18 + -3

Combine like terms: 3 + -3 = 0
0 + -3x = -18 + -3
-3x = -18 + -3

Combine like terms: -18 + -3 = -21
-3x = -21

Divide each side by '-3'.
x = 7

Simplifying
x = 7

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