0.5x-3(40+x)=0.3(40)

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Solution for 0.5x-3(40+x)=0.3(40) equation:


Simplifying
0.5x + -3(40 + x) = 0.3(40)
0.5x + (40 * -3 + x * -3) = 0.3(40)
0.5x + (-120 + -3x) = 0.3(40)

Reorder the terms:
-120 + 0.5x + -3x = 0.3(40)

Combine like terms: 0.5x + -3x = -2.5x
-120 + -2.5x = 0.3(40)

Multiply 0.3 * 40
-120 + -2.5x = 12

Solving
-120 + -2.5x = 12

Solving for variable 'x'.

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

Add '120' to each side of the equation.
-120 + 120 + -2.5x = 12 + 120

Combine like terms: -120 + 120 = 0
0 + -2.5x = 12 + 120
-2.5x = 12 + 120

Combine like terms: 12 + 120 = 132
-2.5x = 132

Divide each side by '-2.5'.
x = -52.8

Simplifying
x = -52.8

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