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Hello please answer need help​

Hello please answer need help​-example-1

2 Answers

1 vote

Answer:
\Large\boxed{27}

Explanation:

Given information converted into a mathematical statement


a = icecream\\b=cookie\\c=brownie\\d=cake\\e=creamed cake


1)~a+b+a+b=42


2)~c+d+c=35


3)~c+c+e=29


4)~a+d+b-e=\mbox{?}

Simplify each equation


1)~2a+2b=42


2)~2c+d=35


3)~2c+e=29


4)~(a+b)+(d-e)=\mbox{?}

Factorize 2 out of the 1) equation


2a+2b=42


2(a+b)=42

Divide 2 on both sides


2(a+b)/2=42/2


a+b=21

Current system


1)~a+b=21


2)~2c+d=35


3)~2c+e=29


4)~(a+b)+(d-e)=\mbox{?}

Subtract 3) equation from the 2) equation


(2c +d)-(2c+e)=(35)-(29)

Expand the parenthesis


2c+d-2c-e=35-29

Combine like terms


2c-2c+d-e=6


d-e=6

Current system


1)~a+b=21


2)~d-e=6


3)~(a+b)+(d-e)=\mbox{?}

Substitute values into the 3) equation to determine the final value


(a+b)+(d-e)


=(21)+(6)


\Large\boxed{=27}

Hope this helps!! :)

Please let me know if you have any questions

User Cpjolicoeur
by
8.4k points
0 votes

2x + 2y = 42

2w + q = 35

2w + v = 29

x + q + y - v = ?


x = 7

y = 14

w = 3

q = 29

v = 23

7 + 29 + 14 - 23 =

The answer is 27

User Sonu Mishra
by
7.5k points

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