.7w-0.4+0.2w=5

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Solution for .7w-0.4+0.2w=5 equation:


Simplifying
0.7w + -0.4 + 0.2w = 5

Reorder the terms:
-0.4 + 0.7w + 0.2w = 5

Combine like terms: 0.7w + 0.2w = 0.9w
-0.4 + 0.9w = 5

Solving
-0.4 + 0.9w = 5

Solving for variable 'w'.

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

Add '0.4' to each side of the equation.
-0.4 + 0.4 + 0.9w = 5 + 0.4

Combine like terms: -0.4 + 0.4 = 0.0
0.0 + 0.9w = 5 + 0.4
0.9w = 5 + 0.4

Combine like terms: 5 + 0.4 = 5.4
0.9w = 5.4

Divide each side by '0.9'.
w = 6

Simplifying
w = 6

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