12*100=d*40

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Solution for 12*100=d*40 equation:


Simplifying
12 * 100 = d * 40

Multiply 12 * 100
1200 = d * 40

Reorder the terms for easier multiplication:
1200 = 40d

Solving
1200 = 40d

Solving for variable 'd'.

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

Add '-40d' to each side of the equation.
1200 + -40d = 40d + -40d

Combine like terms: 40d + -40d = 0
1200 + -40d = 0

Add '-1200' to each side of the equation.
1200 + -1200 + -40d = 0 + -1200

Combine like terms: 1200 + -1200 = 0
0 + -40d = 0 + -1200
-40d = 0 + -1200

Combine like terms: 0 + -1200 = -1200
-40d = -1200

Divide each side by '-40'.
d = 30

Simplifying
d = 30

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