3 years ago

S=a+(n-1)d,solve for d

Mathematics

1 answer:

Vinvika [58]3 years ago

5 0

Answer:\frac{s-a}{n-1}

Step-by-step explanation:

formula, s=a+(n-1)d

1. get rid of the a on d's side by subtracting it from both sides.

s=a+(n-1)d becomes s-a=(n-1)d

2. get rid of (n-1) by dividing it from both sides. s-a=(n-1)d becomes

\frac{s-a}{n-1} =d

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S=a+(n-1)d,solve for d​

S=a+(n-1)d,solve for d