-0.3x+0.7x-7=5

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Solution for -0.3x+0.7x-7=5 equation:


Simplifying
-0.3x + 0.7x + -7 = 5

Reorder the terms:
-7 + -0.3x + 0.7x = 5

Combine like terms: -0.3x + 0.7x = 0.4x
-7 + 0.4x = 5

Solving
-7 + 0.4x = 5

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 0.4x = 5 + 7

Combine like terms: -7 + 7 = 0
0 + 0.4x = 5 + 7
0.4x = 5 + 7

Combine like terms: 5 + 7 = 12
0.4x = 12

Divide each side by '0.4'.
x = 30

Simplifying
x = 30

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