Question

9x–5y–5=0 18x–35y=0 solve by cross multiplication method​

Answer 1

Answer:

Step-by-step explanation:

3x-5y-4=0......(1)

9x-2y-7=0......(2)

from equation (1),we get

A1=3,B1=-5,C1=-4

from equation (2),we get

A2=9,B2=-2,C2=-7

By cross multiplication,we have

X/B1C2-B2C1=Y/C1A2-C2A1=1/A1B2-A2B1

X/-5×-7-(-2)×(-4)=Y/-4×9-(-7)×3=1/3×(-2)-9×(-5)

X/27=Y/-15=1/39

X/27=1/39 Y/-15=1/39

X=9/13 Y=-5/13

HOPE THIS HELPS YOU

Pls mark brainliest