c+(0.4)(5)=0.9(c+5)

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Solution for c+(0.4)(5)=0.9(c+5) equation:


Simplifying
c + (0.4)(5) = 0.9(c + 5)

Multiply 0.4 * 5
c + 2 = 0.9(c + 5)

Reorder the terms:
2 + c = 0.9(c + 5)

Reorder the terms:
2 + c = 0.9(5 + c)
2 + c = (5 * 0.9 + c * 0.9)
2 + c = (4.5 + 0.9c)

Solving
2 + c = 4.5 + 0.9c

Solving for variable 'c'.

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

Add '-0.9c' to each side of the equation.
2 + c + -0.9c = 4.5 + 0.9c + -0.9c

Combine like terms: c + -0.9c = 0.1c
2 + 0.1c = 4.5 + 0.9c + -0.9c

Combine like terms: 0.9c + -0.9c = 0.0
2 + 0.1c = 4.5 + 0.0
2 + 0.1c = 4.5

Add '-2' to each side of the equation.
2 + -2 + 0.1c = 4.5 + -2

Combine like terms: 2 + -2 = 0
0 + 0.1c = 4.5 + -2
0.1c = 4.5 + -2

Combine like terms: 4.5 + -2 = 2.5
0.1c = 2.5

Divide each side by '0.1'.
c = 25

Simplifying
c = 25

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