D=2(a+3)-5(b-4)

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Solution for D=2(a+3)-5(b-4) equation:


Simplifying
D = 2(a + 3) + -5(b + -4)

Reorder the terms:
D = 2(3 + a) + -5(b + -4)
D = (3 * 2 + a * 2) + -5(b + -4)
D = (6 + 2a) + -5(b + -4)

Reorder the terms:
D = 6 + 2a + -5(-4 + b)
D = 6 + 2a + (-4 * -5 + b * -5)
D = 6 + 2a + (20 + -5b)

Reorder the terms:
D = 6 + 20 + 2a + -5b

Combine like terms: 6 + 20 = 26
D = 26 + 2a + -5b

Solving
D = 26 + 2a + -5b

Solving for variable 'D'.

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

Simplifying
D = 26 + 2a + -5b

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