0.40(x)+.45(18)=.43(x+18)

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Solution for 0.40(x)+.45(18)=.43(x+18) equation: 


Simplifying
0.40(x) + 0.45(18) = 0.43(x + 18)

Multiply 0.45 * 18
0.40x + 8.1 = 0.43(x + 18)

Reorder the terms:
8.1 + 0.40x = 0.43(x + 18)

Reorder the terms:
8.1 + 0.40x = 0.43(18 + x)
8.1 + 0.40x = (18 * 0.43 + x * 0.43)
8.1 + 0.40x = (7.74 + 0.43x)

Solving
8.1 + 0.40x = 7.74 + 0.43x

Solving for variable 'x'.

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

Add '-0.43x' to each side of the equation.
8.1 + 0.40x + -0.43x = 7.74 + 0.43x + -0.43x

Combine like terms: 0.40x + -0.43x = -0.03x
8.1 + -0.03x = 7.74 + 0.43x + -0.43x

Combine like terms: 0.43x + -0.43x = 0.00
8.1 + -0.03x = 7.74 + 0.00
8.1 + -0.03x = 7.74

Add '-8.1' to each side of the equation.
8.1 + -8.1 + -0.03x = 7.74 + -8.1

Combine like terms: 8.1 + -8.1 = 0.0
0.0 + -0.03x = 7.74 + -8.1
-0.03x = 7.74 + -8.1

Combine like terms: 7.74 + -8.1 = -0.36
-0.03x = -0.36

Divide each side by '-0.03'.
x = 12

Simplifying
x = 12

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