7d+0.4=4d+2.8

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Solution for 7d+0.4=4d+2.8 equation:


Simplifying
7d + 0.4 = 4d + 2.8

Reorder the terms:
0.4 + 7d = 4d + 2.8

Reorder the terms:
0.4 + 7d = 2.8 + 4d

Solving
0.4 + 7d = 2.8 + 4d

Solving for variable 'd'.

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

Add '-4d' to each side of the equation.
0.4 + 7d + -4d = 2.8 + 4d + -4d

Combine like terms: 7d + -4d = 3d
0.4 + 3d = 2.8 + 4d + -4d

Combine like terms: 4d + -4d = 0
0.4 + 3d = 2.8 + 0
0.4 + 3d = 2.8

Add '-0.4' to each side of the equation.
0.4 + -0.4 + 3d = 2.8 + -0.4

Combine like terms: 0.4 + -0.4 = 0.0
0.0 + 3d = 2.8 + -0.4
3d = 2.8 + -0.4

Combine like terms: 2.8 + -0.4 = 2.4
3d = 2.4

Divide each side by '3'.
d = 0.8

Simplifying
d = 0.8

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