1*(-7)=d

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Solution for 1*(-7)=d equation:


Simplifying
1(-7) = d

Multiply 1 * -7
-7 = d

Solving
-7 = d

Solving for variable 'd'.

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

Add '-1d' to each side of the equation.
-7 + -1d = d + -1d

Combine like terms: d + -1d = 0
-7 + -1d = 0

Add '7' to each side of the equation.
-7 + 7 + -1d = 0 + 7

Combine like terms: -7 + 7 = 0
0 + -1d = 0 + 7
-1d = 0 + 7

Combine like terms: 0 + 7 = 7
-1d = 7

Divide each side by '-1'.
d = -7

Simplifying
d = -7

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