7(2x+3)=42+7x

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Solution for 7(2x+3)=42+7x equation:


Simplifying
7(2x + 3) = 42 + 7x

Reorder the terms:
7(3 + 2x) = 42 + 7x
(3 * 7 + 2x * 7) = 42 + 7x
(21 + 14x) = 42 + 7x

Solving
21 + 14x = 42 + 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.
21 + 14x + -7x = 42 + 7x + -7x

Combine like terms: 14x + -7x = 7x
21 + 7x = 42 + 7x + -7x

Combine like terms: 7x + -7x = 0
21 + 7x = 42 + 0
21 + 7x = 42

Add '-21' to each side of the equation.
21 + -21 + 7x = 42 + -21

Combine like terms: 21 + -21 = 0
0 + 7x = 42 + -21
7x = 42 + -21

Combine like terms: 42 + -21 = 21
7x = 21

Divide each side by '7'.
x = 3

Simplifying
x = 3

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