3x-2y=5
-6x+4y=7
Solve the linear equation algebraically!

Question

anonymous · Answer

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anonymous · Answer

can anyone answer please?

anonymous · Answer

try using substitution or elimination

anonymous · Answer

i know that. i dont understand HOW to use it though.

anonymous · Answer

okay take one of the equations, anyone and make it equal x or y ur choice. 
for ex: 3x-2y=5
               +2y  =2y
3x=5+2y
/3        /3
x=5/3+2/3y
Now take the other equation and subsitute the x in that equation for 5/3+2/3y and solve.

anonymous · Answer

3x-2y=5..................(1)
-6x+4y=7............(2)
y=(-5+3x)/2     [ from equation  1]
sub y in (2)
-6x+4[(-5+3x)/2=7
0=17this means x is contained in empty set
hence the system of linear equations is inconsistence(no solution)