0x+9(.8)=.45(x+9)

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Solution for 0x+9(.8)=.45(x+9) equation:


Simplifying
0x + 9(0.8) = 0.45(x + 9)

Anything times zero is zero.
0x + 9(0.8) = 0.45(x + 9)

Multiply 9 * 0.8
0 + 7.2 = 0.45(x + 9)

Combine like terms: 0 + 7.2 = 7.2
7.2 = 0.45(x + 9)

Reorder the terms:
7.2 = 0.45(9 + x)
7.2 = (9 * 0.45 + x * 0.45)
7.2 = (4.05 + 0.45x)

Solving
7.2 = 4.05 + 0.45x

Solving for variable 'x'.

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

Add '-0.45x' to each side of the equation.
7.2 + -0.45x = 4.05 + 0.45x + -0.45x

Combine like terms: 0.45x + -0.45x = 0.00
7.2 + -0.45x = 4.05 + 0.00
7.2 + -0.45x = 4.05

Add '-7.2' to each side of the equation.
7.2 + -7.2 + -0.45x = 4.05 + -7.2

Combine like terms: 7.2 + -7.2 = 0.0
0.0 + -0.45x = 4.05 + -7.2
-0.45x = 4.05 + -7.2

Combine like terms: 4.05 + -7.2 = -3.15
-0.45x = -3.15

Divide each side by '-0.45'.
x = 7

Simplifying
x = 7

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