Question

Ab + c = d solve for a

Answer 1

Answer:

a=d-c/b

Subtract c from both sides

a=d-c/b

divide both sides by b

Answer 2

Start with

$ab + c = d$

Subtract $c$ from both sides:

$ab = d-c$

Divide both sides by $b$ (under the assumption that $b\neq 0$):

$a= \dfrac{d-c}{b}$