(X-3)*7=X*4

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Solution for (X-3)*7=X*4 equation:


Simplifying
(X + -3) * 7 = X * 4

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

Reorder the terms for easier multiplication:
7(-3 + X) = X * 4
(-3 * 7 + X * 7) = X * 4
(-21 + 7X) = X * 4

Reorder the terms for easier multiplication:
-21 + 7X = 4X

Solving
-21 + 7X = 4X

Solving for variable 'X'.

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

Add '-4X' to each side of the equation.
-21 + 7X + -4X = 4X + -4X

Combine like terms: 7X + -4X = 3X
-21 + 3X = 4X + -4X

Combine like terms: 4X + -4X = 0
-21 + 3X = 0

Add '21' to each side of the equation.
-21 + 21 + 3X = 0 + 21

Combine like terms: -21 + 21 = 0
0 + 3X = 0 + 21
3X = 0 + 21

Combine like terms: 0 + 21 = 21
3X = 21

Divide each side by '3'.
X = 7

Simplifying
X = 7

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