7(x-3)=42-5x

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Solution for 7(x-3)=42-5x equation:


Simplifying
7(x + -3) = 42 + -5x

Reorder the terms:
7(-3 + x) = 42 + -5x
(-3 * 7 + x * 7) = 42 + -5x
(-21 + 7x) = 42 + -5x

Solving
-21 + 7x = 42 + -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
-21 + 7x + 5x = 42 + -5x + 5x

Combine like terms: 7x + 5x = 12x
-21 + 12x = 42 + -5x + 5x

Combine like terms: -5x + 5x = 0
-21 + 12x = 42 + 0
-21 + 12x = 42

Add '21' to each side of the equation.
-21 + 21 + 12x = 42 + 21

Combine like terms: -21 + 21 = 0
0 + 12x = 42 + 21
12x = 42 + 21

Combine like terms: 42 + 21 = 63
12x = 63

Divide each side by '12'.
x = 5.25

Simplifying
x = 5.25

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