Question

For what values of a can you solve the linear system ax+3y=2 and 4x+5y=6 by elimination without multiplying first?

Answer 1

Answer:

a=-4

Step-by-step explanation:

$ax+3y=2$ and $4x+5y=6$

In elimination method we try to eliminate one variable

To eliminate one variable we need to make the coefficients same with different sign

to eliminate the variable x  we need to make the number before x same and with different sign

In the second equation the coefficient of x is 4

so the value of 'a' should be -4 to eliminate

a=-4