Solve for the variable c in this equation.
a(c + b) = d

c = (d-ba)  /a

Step-by-step explanation:

a(c + b) = d

Divide each side by a

a/a(c + b) = d/a

c+b = d/a

Subtract b

c = d/a -b

Get a common denominator

c =d/a - ba/a

c = (d-ba)  /a

Steps to solve:

a(c + b) = d

~Distribute

ac + ab = d

~Subtract ab to both sides

ac + ab - ab = d - ab

~Simplify

ac = d - ab

~Divide a to both sides

ac/a = d-ab/a

~Simplify

c = d-ab/a

Therefore, the answer is A

Best of Luck!

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.

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step-by-step explanation:

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