7=0.4x+4

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Solution for 7=0.4x+4 equation:


Simplifying
7 = 0.4x + 4

Reorder the terms:
7 = 4 + 0.4x

Solving
7 = 4 + 0.4x

Solving for variable 'x'.

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

Add '-0.4x' to each side of the equation.
7 + -0.4x = 4 + 0.4x + -0.4x

Combine like terms: 0.4x + -0.4x = 0.0
7 + -0.4x = 4 + 0.0
7 + -0.4x = 4

Add '-7' to each side of the equation.
7 + -7 + -0.4x = 4 + -7

Combine like terms: 7 + -7 = 0
0 + -0.4x = 4 + -7
-0.4x = 4 + -7

Combine like terms: 4 + -7 = -3
-0.4x = -3

Divide each side by '-0.4'.
x = 7.5

Simplifying
x = 7.5

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