Question

Solve following pairs of linear equations using cross-multiplication method:

5 − 3 = 2

4 + 7 = −3​

Answer 1

Answer:

Step-by-step explanation:

By Formula

(x/b1c2-b2c1)=(y/c1a2-c2a1)=(1/a1b2-a2b1)

a1=5;  b1=-3;  c1=2

a2=4;  b2=7;  c2-3

solving the eqn we get

x/-23=y/23=1/47

x/-23=1/47

x=-23/47

y/23=1/47

y=23/47