7(x-3)=4.2

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Solution for 7(x-3)=4.2 equation:


Simplifying
7(x + -3) = 4.2

Reorder the terms:
7(-3 + x) = 4.2
(-3 * 7 + x * 7) = 4.2
(-21 + 7x) = 4.2

Solving
-21 + 7x = 4.2

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + 7x = 4.2 + 21

Combine like terms: -21 + 21 = 0
0 + 7x = 4.2 + 21
7x = 4.2 + 21

Combine like terms: 4.2 + 21 = 25.2
7x = 25.2

Divide each side by '7'.
x = 3.6

Simplifying
x = 3.6

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