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5 votes
3/a (-2) - 4 = 20 please help me out

User DonnaLea
by
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1 Answer

7 votes

Answer:


\sf \large \: a = ( - 1)/(4)

Explanation:

Let's solve your equation step-by-step.

3/a(−2)−4=20

−4a−6/a=20

Step 1: Multiply both sides by a.

−4a−6=20a

−4a−6−20a=20a−20a(Subtract 20a from both sides)

−24a−6=0

−24a−6+6=0+6(Add 6 to both sides)

−24a=6

−24a/−24=6/−24

(Divide both sides by -24)

a=−1/4

Check answers. (Plug them in to make sure they work.)

a=−1/4

(Works in original equation)

User Phaedrus
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5.3k points