Question

Hello please answer need help​

Answer 1

Answer: $\Large\boxed{27}$

Step-by-step 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

$2(a+b)\div2=42\div2$

$a+b=21$

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

Answer 2

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