Solve for a.
ab +c=d
a=b+c/d
O a = b/(C-d)
O a = (d - c)/b

Step-by-step explanation:

ab +c=d

SUBTRACT c FROM BOTH SIDES.

ab + c (-c) = d - c

ab + 0 = d - c

ab = d-c

Divide both sides by b.

ab/b = (d-c)/b

a = (d-c)/b (FIRST EQUATION)

a=b+c/d

THIS IS ALREADY SOLVED FOR a. (SECOND EQUATION)

O a = b/(C-d)

O a = (d - c)/b

mxb67

step-by-step explanation:

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8