SOLUTION: square root of 144 + 3[8+7(2-3)]= I can't seem to get the right answer which is 15

Question 86672: square root of 144 + 3[8+7(2-3)]= I can't seem to get the right answer which is 15
Answer by bucky(2189) (Show Source): You can put this solution on YOUR website!
Given:
.

.
Find y
.
First you can do . Substitute this and the equation becomes:
.

.
Now start with the most nested (the interior) set of parentheses. These are the parentheses
that contain 2 - 3. Since 2 - 3 = -1 we can substitute this and the equation becomes:
.

.
Then multiply 7 times the -1 and get -7. Substitute -7 for 7(-1) and the equation then
becomes:
.

.
Then subtract 7 from 8 to get +1. Substitute +1 for the parentheses and you have:
.

.
Multiply 3 times +1 and the equation is reduced to:
.

.
and the answer (y) is equal to 12 + 3 and this is +15
.
Hope this explains where the answer came from.

RELATED QUESTIONS
saquare root of 144 + 3[8+7)2-3)]= I can't seem to get the right answer which is... (answered by tutorcecilia)

Here are a few problems that I am not sure if I got them right. Thanks. Paul 1)... (answered by ankor@dixie-net.com)

I've already solved the problem it's just that I don't understand how that Is the answer. (answered by algebrahouse.com)

i tried doing a square root tree but that didn't work. the question 3 square root 56,... (answered by Alan3354,MathLover1)

I am having trouble finding the midpoint of the square roots. I got one of the problems... (answered by Alan3354)

I have been trying this equation and just can't seem to get it. I have been asked to... (answered by solver91311)

What is the radius of a circle with an area of 144 pi? The correct answer is 12 but when (answered by ewatrrr)

Which is equivalent to 4 and square root of 3? 1)square root of 16 2)square root of 19 (answered by jim_thompson5910)

Find all numbers for which rational expression is undefined. t^3-3t/t^2-49 The answer (answered by jim_thompson5910)