Question

check whether the pair of equations 2x+y-5=0 and 3x-2y-4=0 consistent or not in graphically ,find the solution if the equations are consistent.

Answer 1

to check we have to see if
a1/a2=b1/b2or not
a1/a2=2/3
b1/b2=1/2
it mean that it has a unique solution
by using eliminating formula we get
7x=14
x=2
and y=5-2×2
y=1