-7(a+d)=

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Solution for -7(a+d)= equation: 


Simplifying
-7(a + d) = 0
(a * -7 + d * -7) = 0
(-7a + -7d) = 0

Solving
-7a + -7d = 0

Solving for variable 'a'.

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

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

Combine like terms: -7d + 7d = 0
-7a + 0 = 0 + 7d
-7a = 0 + 7d
Remove the zero:
-7a = 7d

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

Simplifying
a = -1d

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