0.40(7)+x=0.60(7+x)

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Solution for 0.40(7)+x=0.60(7+x) equation: 


Simplifying
0.40(7) + x = 0.60(7 + x)

Multiply 0.40 * 7
2.8 + x = 0.60(7 + x)
2.8 + x = (7 * 0.60 + x * 0.60)
2.8 + x = (4.2 + 0.60x)

Solving
2.8 + x = 4.2 + 0.60x

Solving for variable 'x'.

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

Add '-0.60x' to each side of the equation.
2.8 + x + -0.60x = 4.2 + 0.60x + -0.60x

Combine like terms: x + -0.60x = 0.4x
2.8 + 0.4x = 4.2 + 0.60x + -0.60x

Combine like terms: 0.60x + -0.60x = 0.00
2.8 + 0.4x = 4.2 + 0.00
2.8 + 0.4x = 4.2

Add '-2.8' to each side of the equation.
2.8 + -2.8 + 0.4x = 4.2 + -2.8

Combine like terms: 2.8 + -2.8 = 0.0
0.0 + 0.4x = 4.2 + -2.8
0.4x = 4.2 + -2.8

Combine like terms: 4.2 + -2.8 = 1.4
0.4x = 1.4

Divide each side by '0.4'.
x = 3.5

Simplifying
x = 3.5

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