8. –21a + 28a - 6 = - 10.2

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asked Dec 3, 2020 109k views

1 vote

8. –21a + 28a - 6 = - 10.2

Mathematics
middle-school

Vytalyi asked

by Vytalyi

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2 Answers

3 votes

Answer:

-0.6

Explanation:

-21a+28a-6=-10.2

Add -21a and 28a =

7a-6= -10.2

add six to both sides

7a= -4.2

divide both sides by 7

a= -0.6

Cililing answered Dec 4, 2020

by Cililing

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3 votes

The answer to A is = to -0.5857

Ole Borgersen answered Dec 9, 2020

by Ole Borgersen

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