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kirza4 [7]
3 years ago
12

What is the simplest form of the expression (14.2a + 9.8b) – (13.1b – 0.2a) – (3.7a + 4.8b)?

Mathematics
2 answers:
makvit [3.9K]3 years ago
5 0

The first; 10.7a-8.1b

frosja888 [35]3 years ago
4 0

Answer:

10.7a - 8.1b

Step-by-step explanation:

the simplest form of the expression (14.2a + 9.8b) - (13.1b - 0.2a) - (3.7a + 4.8b)

(14.2a + 9.8b) - (13.1b - 0.2a)- (3.7a + 4.8b)

To subtract the expressions we multiply negative sign inside the second parenthesis, change the sign of each term in second and third parenthesis

14.2a + 9.8b - 13.1b + 0.2a-3.7a-4.8b

Now we combine like terms

14.2a +0.2a-3.7a = 10.7a

9.8b - 13.1b-4.8b=-8.1b

So the expression becomes

10.7a - 8.1b

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