Question

solve the system of equation:
3x+6y=14, x+2y=3

a.(-7,5)
b. (0,0)
c.(5,-7)
d.no solution

Answer 1

first, you move 2y to the right side of the equation -> x = 3-2y;
substitute the x into the first equation, and check whether the new equation makes sense or not. if not, then there is no solution

Answer 2

thank

Answer 3

wait no you move 2y to the beginnin. and 3x right

Answer 4

if you are using substitution, the order doesn't matter.
if you want to use y to substitute: y = (3-x)/2, and substitute into 3x+6y=14
which will become 3x + 6((3-x)/2) = 14