.5x+.40(400)=.10(x+400)

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Solution for .5x+.40(400)=.10(x+400) equation:


Simplifying
0.5x + 0.40(400) = 0.10(x + 400)

Multiply 0.40 * 400
0.5x + 160 = 0.10(x + 400)

Reorder the terms:
160 + 0.5x = 0.10(x + 400)

Reorder the terms:
160 + 0.5x = 0.10(400 + x)
160 + 0.5x = (400 * 0.10 + x * 0.10)
160 + 0.5x = (40 + 0.10x)

Solving
160 + 0.5x = 40 + 0.10x

Solving for variable 'x'.

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

Add '-0.10x' to each side of the equation.
160 + 0.5x + -0.10x = 40 + 0.10x + -0.10x

Combine like terms: 0.5x + -0.10x = 0.4x
160 + 0.4x = 40 + 0.10x + -0.10x

Combine like terms: 0.10x + -0.10x = 0.00
160 + 0.4x = 40 + 0.00
160 + 0.4x = 40

Add '-160' to each side of the equation.
160 + -160 + 0.4x = 40 + -160

Combine like terms: 160 + -160 = 0
0 + 0.4x = 40 + -160
0.4x = 40 + -160

Combine like terms: 40 + -160 = -120
0.4x = -120

Divide each side by '0.4'.
x = -300

Simplifying
x = -300

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