21=7(3-2x)

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Solution for 21=7(3-2x) equation:


Simplifying
21 = 7(3 + -2x)
21 = (3 * 7 + -2x * 7)
21 = (21 + -14x)

Add '-21' to each side of the equation.
21 + -21 = 21 + -21 + -14x

Combine like terms: 21 + -21 = 0
0 = 21 + -21 + -14x

Combine like terms: 21 + -21 = 0
0 = 0 + -14x
0 = -14x

Solving
0 = -14x

Solving for variable 'x'.

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

Add '14x' to each side of the equation.
0 + 14x = -14x + 14x
Remove the zero:
14x = -14x + 14x

Combine like terms: -14x + 14x = 0
14x = 0

Divide each side by '14'.
x = 0

Simplifying
x = 0

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