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icang [17]
3 years ago
15

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

Mathematics
2 answers:
Pavel [41]3 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]3 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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If the probability of rain today is 15%, what is the probability that it will not
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3 years ago
12x - 2/3 = 83 1/3 <br><br> 12x=?<br><br> x=?
Serjik [45]

Answer:

12x = 84

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Step-by-step explanation:

12x = 83 1/3 + 2/3

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4 0
3 years ago
Solve the equation by clearing the decimals: 0.8x -0.3 = 0.7x + 0.2
Mashutka [201]

Answer:

x = 5

Step-by-step explanation:

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5 0
3 years ago
In 1990, the population of Boston, Massachusetts was 574,283. In 2000, the population was 589,141. What is the percent of change
MrMuchimi

Answer:

Percent of change in population is 2.6%

Step-by-step explanation:

Given population of Boston is 574,283 measured in year 1990.

And population of Boston in year 2000 is 589,141.

We need to find percent of change in population.

So, percent change =\frac{New\ population-Old\ population}{Old\ population}\times100%

Here old population is 574,283 and new population is 589,141

Plugging these value in formula we get,

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8 0
3 years ago
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