4 years ago

6. Solve for a: 3a – 5(a - 2) = 341. a = 12. a = -123. a = -224. a = 0

Mathematics

1 answer:

Sauron [17]4 years ago

7 0

Answer:

a = -12

Step-by-step explanation:

3a – 5(a - 2) = 34

→ Expand out the brackets – 5(a - 2)

– 5(a - 2) = – 5(a + 2) = -5a + 10

→ Substitute that back into the equation

3a - 5a + 10 = 34

→ Simplify the 'a's

-2a + 10 = 34

→ Minus 10 from both sides to isolate -2a

-2a = 24

→ Divide both sides by -2 to isolate a

a = -12

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6. Solve for a: 3a – 5(a - 2) = 341. a = 12. a = -123. a = -224. a = 0​

6. Solve for a: 3a – 5(a - 2) = 341. a = 12. a = -123. a = -224. a = 0