.84(x+4)=-4.2

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Solution for .84(x+4)=-4.2 equation:


Simplifying
0.84(x + 4) = -4.2

Reorder the terms:
0.84(4 + x) = -4.2
(4 * 0.84 + x * 0.84) = -4.2
(3.36 + 0.84x) = -4.2

Solving
3.36 + 0.84x = -4.2

Solving for variable 'x'.

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

Add '-3.36' to each side of the equation.
3.36 + -3.36 + 0.84x = -4.2 + -3.36

Combine like terms: 3.36 + -3.36 = 0.00
0.00 + 0.84x = -4.2 + -3.36
0.84x = -4.2 + -3.36

Combine like terms: -4.2 + -3.36 = -7.56
0.84x = -7.56

Divide each side by '0.84'.
x = -9

Simplifying
x = -9

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