0.7x-0.4(30+x)=0.2(30)

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Solution for 0.7x-0.4(30+x)=0.2(30) equation:


Simplifying
0.7x + -0.4(30 + x) = 0.2(30)
0.7x + (30 * -0.4 + x * -0.4) = 0.2(30)
0.7x + (-12 + -0.4x) = 0.2(30)

Reorder the terms:
-12 + 0.7x + -0.4x = 0.2(30)

Combine like terms: 0.7x + -0.4x = 0.3x
-12 + 0.3x = 0.2(30)

Multiply 0.2 * 30
-12 + 0.3x = 6

Solving
-12 + 0.3x = 6

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 0.3x = 6 + 12

Combine like terms: -12 + 12 = 0
0 + 0.3x = 6 + 12
0.3x = 6 + 12

Combine like terms: 6 + 12 = 18
0.3x = 18

Divide each side by '0.3'.
x = 60

Simplifying
x = 60

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