CameraIcon
CameraIcon
SearchIcon
MyQuestionIcon


Question

Solve using cross multiplication method

3x – 4y = 10 and  8x + 5y = 11



Your Answer
A

(-2,1)

Correct Answer
B

(2,-1)

Your Answer
C

(-2,-1)

Your Answer
D

(2,1)


Solution

The correct option is B

(2,-1)


Given equations :  3x – 4y = 10 and  8x + 5y = 11

a1=3, b1=4,  c1=10 and a2=8,  b2=5,  c2=11

         x                 y                  1

-4             -10             3                 -4

 5            - 11              8                  5

we have  xb1c2b2c1yc1a2a2c11a1b2b2a1

   x44+50y80+33115+32

   x94y47147

   x94 =  147  x = 2

   y47 =  147    y = -1

flag
 Suggest corrections
thumbs-up
 
0 Upvotes


Similar questions
View More


People also searched for
View More



footer-image