0.03(x-40)+0.09(x+10)=45

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Solution for 0.03(x-40)+0.09(x+10)=45 equation:


Simplifying
0.03(x + -40) + 0.09(x + 10) = 45

Reorder the terms:
0.03(-40 + x) + 0.09(x + 10) = 45
(-40 * 0.03 + x * 0.03) + 0.09(x + 10) = 45
(-1.2 + 0.03x) + 0.09(x + 10) = 45

Reorder the terms:
-1.2 + 0.03x + 0.09(10 + x) = 45
-1.2 + 0.03x + (10 * 0.09 + x * 0.09) = 45
-1.2 + 0.03x + (0.9 + 0.09x) = 45

Reorder the terms:
-1.2 + 0.9 + 0.03x + 0.09x = 45

Combine like terms: -1.2 + 0.9 = -0.3
-0.3 + 0.03x + 0.09x = 45

Combine like terms: 0.03x + 0.09x = 0.12x
-0.3 + 0.12x = 45

Solving
-0.3 + 0.12x = 45

Solving for variable 'x'.

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

Add '0.3' to each side of the equation.
-0.3 + 0.3 + 0.12x = 45 + 0.3

Combine like terms: -0.3 + 0.3 = 0.0
0.0 + 0.12x = 45 + 0.3
0.12x = 45 + 0.3

Combine like terms: 45 + 0.3 = 45.3
0.12x = 45.3

Divide each side by '0.12'.
x = 377.5

Simplifying
x = 377.5

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