Question

Solve the Equation
4d+2d-4d+4=3d
A.) 4/7
B.) 4
C.) -4/5
D.) -4

Answer 1

it is B...

Answer 2

4d+2d-4d+4=3d

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Equation:


Solution for 4d+2d-4d+4=3d equation:

Simplifying
4d + 2d + -4d + 4 = 3d

Reorder the terms:
4 + 4d + 2d + -4d = 3d

Combine like terms: 4d + 2d = 6d
4 + 6d + -4d = 3d

Combine like terms: 6d + -4d = 2d
4 + 2d = 3d

Solving
4 + 2d = 3d

Solving for variable 'd'.

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

Add '-3d' to each side of the equation.
4 + 2d + -3d = 3d + -3d

Combine like terms: 2d + -3d = -1d
4 + -1d = 3d + -3d

Combine like terms: 3d + -3d = 0
4 + -1d = 0

Add '-4' to each side of the equation.
4 + -4 + -1d = 0 + -4

Combine like terms: 4 + -4 = 0
0 + -1d = 0 + -4
-1d = 0 + -4

Combine like terms: 0 + -4 = -4
-1d = -4

Divide each side by '-1'.
d = 4

Simplifying
d = 4