0.7(4)+x=0.3(4+x)

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Solution for 0.7(4)+x=0.3(4+x) equation: 


Simplifying
0.7(4) + x = 0.3(4 + x)

Multiply 0.7 * 4
2.8 + x = 0.3(4 + x)
2.8 + x = (4 * 0.3 + x * 0.3)
2.8 + x = (1.2 + 0.3x)

Solving
2.8 + x = 1.2 + 0.3x

Solving for variable 'x'.

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

Add '-0.3x' to each side of the equation.
2.8 + x + -0.3x = 1.2 + 0.3x + -0.3x

Combine like terms: x + -0.3x = 0.7x
2.8 + 0.7x = 1.2 + 0.3x + -0.3x

Combine like terms: 0.3x + -0.3x = 0.0
2.8 + 0.7x = 1.2 + 0.0
2.8 + 0.7x = 1.2

Add '-2.8' to each side of the equation.
2.8 + -2.8 + 0.7x = 1.2 + -2.8

Combine like terms: 2.8 + -2.8 = 0.0
0.0 + 0.7x = 1.2 + -2.8
0.7x = 1.2 + -2.8

Combine like terms: 1.2 + -2.8 = -1.6
0.7x = -1.6

Divide each side by '0.7'.
x = -2.285714286

Simplifying
x = -2.285714286

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