Question

Find m and a:
12x + 3y = 36
mx - 9y = a

Answer 1

Put the equation in standard form which would be y=4x+ 12
^ ^
m a

Answer 2

how do you find m and a once you put the first term in standard form?

Answer 3

3 y = -12 x + 36
so
y = -4 x + 12
or
y = (-4) x + 12
that looks like
y = m x + b
so
m = -4 and b = 12