7-4(d-3)=31

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Solution for 7-4(d-3)=31 equation:


Simplifying
7 + -4(d + -3) = 31

Reorder the terms:
7 + -4(-3 + d) = 31
7 + (-3 * -4 + d * -4) = 31
7 + (12 + -4d) = 31

Combine like terms: 7 + 12 = 19
19 + -4d = 31

Solving
19 + -4d = 31

Solving for variable 'd'.

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

Add '-19' to each side of the equation.
19 + -19 + -4d = 31 + -19

Combine like terms: 19 + -19 = 0
0 + -4d = 31 + -19
-4d = 31 + -19

Combine like terms: 31 + -19 = 12
-4d = 12

Divide each side by '-4'.
d = -3

Simplifying
d = -3

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