4 years ago

- 21a + 28a - 6 = -10.2 Need help please explain it tooo

1 answer:

7 0

Answer:

a = -0.6 or a= -3/5

Step-by-step explanation:

collect the terms, move the constant to the right and change its sign, calculate the sum, divide both sides of the equation by 7

you should get the app photomath

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