0.04x+0.03(7-x)=

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Solution for 0.04x+0.03(7-x)= equation: 


Simplifying
0.04x + 0.03(7 + -1x) = 0
0.04x + (7 * 0.03 + -1x * 0.03) = 0
0.04x + (0.21 + -0.03x) = 0

Reorder the terms:
0.21 + 0.04x + -0.03x = 0

Combine like terms: 0.04x + -0.03x = 0.01x
0.21 + 0.01x = 0

Solving
0.21 + 0.01x = 0

Solving for variable 'x'.

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

Add '-0.21' to each side of the equation.
0.21 + -0.21 + 0.01x = 0 + -0.21

Combine like terms: 0.21 + -0.21 = 0.00
0.00 + 0.01x = 0 + -0.21
0.01x = 0 + -0.21

Combine like terms: 0 + -0.21 = -0.21
0.01x = -0.21

Divide each side by '0.01'.
x = -21

Simplifying
x = -21

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