0.7(x+3)=4.2

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Solution for 0.7(x+3)=4.2 equation: 


Simplifying
0.7(x + 3) = 4.2

Reorder the terms:
0.7(3 + x) = 4.2
(3 * 0.7 + x * 0.7) = 4.2
(2.1 + 0.7x) = 4.2

Solving
2.1 + 0.7x = 4.2

Solving for variable 'x'.

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

Add '-2.1' to each side of the equation.
2.1 + -2.1 + 0.7x = 4.2 + -2.1

Combine like terms: 2.1 + -2.1 = 0.0
0.0 + 0.7x = 4.2 + -2.1
0.7x = 4.2 + -2.1

Combine like terms: 4.2 + -2.1 = 2.1
0.7x = 2.1

Divide each side by '0.7'.
x = 3

Simplifying
x = 3

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