x+.40(7)=.70(x+2)

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Solution for x+.40(7)=.70(x+2) equation: 


Simplifying
x + 0.40(7) = 0.70(x + 2)

Multiply 0.40 * 7
x + 2.8 = 0.70(x + 2)

Reorder the terms:
2.8 + x = 0.70(x + 2)

Reorder the terms:
2.8 + x = 0.70(2 + x)
2.8 + x = (2 * 0.70 + x * 0.70)
2.8 + x = (1.4 + 0.70x)

Solving
2.8 + x = 1.4 + 0.70x

Solving for variable 'x'.

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

Add '-0.70x' to each side of the equation.
2.8 + x + -0.70x = 1.4 + 0.70x + -0.70x

Combine like terms: x + -0.70x = 0.3x
2.8 + 0.3x = 1.4 + 0.70x + -0.70x

Combine like terms: 0.70x + -0.70x = 0.00
2.8 + 0.3x = 1.4 + 0.00
2.8 + 0.3x = 1.4

Add '-2.8' to each side of the equation.
2.8 + -2.8 + 0.3x = 1.4 + -2.8

Combine like terms: 2.8 + -2.8 = 0.0
0.0 + 0.3x = 1.4 + -2.8
0.3x = 1.4 + -2.8

Combine like terms: 1.4 + -2.8 = -1.4
0.3x = -1.4

Divide each side by '0.3'.
x = -4.666666667

Simplifying
x = -4.666666667

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