1.2+1.3d=0.3d-2.1

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Solution for 1.2+1.3d=0.3d-2.1 equation: 


Simplifying
1.2 + 1.3d = 0.3d + -2.1

Reorder the terms:
1.2 + 1.3d = -2.1 + 0.3d

Solving
1.2 + 1.3d = -2.1 + 0.3d

Solving for variable 'd'.

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

Add '-0.3d' to each side of the equation.
1.2 + 1.3d + -0.3d = -2.1 + 0.3d + -0.3d

Combine like terms: 1.3d + -0.3d = 1d
1.2 + 1d = -2.1 + 0.3d + -0.3d

Combine like terms: 0.3d + -0.3d = 0.0
1.2 + 1d = -2.1 + 0.0
1.2 + 1d = -2.1

Add '-1.2' to each side of the equation.
1.2 + -1.2 + 1d = -2.1 + -1.2

Combine like terms: 1.2 + -1.2 = 0.0
0.0 + 1d = -2.1 + -1.2
1d = -2.1 + -1.2

Combine like terms: -2.1 + -1.2 = -3.3
1d = -3.3

Divide each side by '1'.
d = -3.3

Simplifying
d = -3.3

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