6(d-7)=8(d+9)

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Solution for 6(d-7)=8(d+9) equation:


Simplifying
6(d + -7) = 8(d + 9)

Reorder the terms:
6(-7 + d) = 8(d + 9)
(-7 * 6 + d * 6) = 8(d + 9)
(-42 + 6d) = 8(d + 9)

Reorder the terms:
-42 + 6d = 8(9 + d)
-42 + 6d = (9 * 8 + d * 8)
-42 + 6d = (72 + 8d)

Solving
-42 + 6d = 72 + 8d

Solving for variable 'd'.

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

Add '-8d' to each side of the equation.
-42 + 6d + -8d = 72 + 8d + -8d

Combine like terms: 6d + -8d = -2d
-42 + -2d = 72 + 8d + -8d

Combine like terms: 8d + -8d = 0
-42 + -2d = 72 + 0
-42 + -2d = 72

Add '42' to each side of the equation.
-42 + 42 + -2d = 72 + 42

Combine like terms: -42 + 42 = 0
0 + -2d = 72 + 42
-2d = 72 + 42

Combine like terms: 72 + 42 = 114
-2d = 114

Divide each side by '-2'.
d = -57

Simplifying
d = -57

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