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icang [17]
2 years ago
15

How to expand and simplify this equation 7(2a+3)+3(4a-2).

Mathematics
2 answers:
Pavel [41]2 years ago
8 0
Ok, so first we distribute, you multiply the seven into everything in the parentheses next to it. So far we have, 14a+21+3(4a-2). You distribute the three into the parentheses to get, 14a+21+12a-6. You combine the like terms to get, 26a-15. You cannot simplify it any further so the answer is 26a-15.
BaLLatris [955]2 years ago
6 0
First distribute using distributive property
a(b+c)=ab+ac

7(2a+3)=14a+21
3(4a-2)=12a-6
add
14a+21+12a-6=26a+15
tada



26a+15
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a flat for sale sign has a perimeter of 58 inches. the length is 5 inches longer than the width. what is the width?
timofeeve [1]

Answer:

25 inches

Step-by-step explanation:

1. Information that is needed to solve the problem;

The formula for the perimeter is:

2(a+b) = P

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2. Solving the problem;

Substitute the given values into the formula;

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Inverse operations;

2 ( 5 + b ) = 58

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mote1985 [20]

Answer:

The acceleration is

4.5 {ms}^{ - 2}

Step-by-step explanation:

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