Question

Answer the question
3+4=18
2+6=32
5+3=?

Answer 1

Answer:

8

Step-by-step explanation:

Let

3x + 4y = 18 )x 3 => 9x + 12y = 54 -----1)

2x + 6y = 32 )x 2 => 4x + 12y = 64 ------2)

Subtracting 1 and 2, we get

                   5x = -10

                   x = -2

                   y = 6

Thus 5x + 3y = 5 * -2 + 3* 6 = -10+18 = 8

Answer 2

Answer:

Let to find the answer

consider x & y in the places of the number

then

3x+4y=18 ------(1)

2x+6y=32------(2)

solve the above equation

(1)*3=> 9x+12y=54

(2)*2=>4x+12y=64

(1)-(2)=> 5x =-10

x= -2

Substitute x=-2 in (1)

3(-2)+4y =18

4y= 18+6

y = 24/4

y=6

then

5x+3y = 5(-2)+3(6)

=-10+18

= 8

5+3=8