14*20 = 280
y = 12x - 96
standard form is y = bx +m.
y= 12 (x-8) this is because you add 10 to both sides
y= 12x - 96 because you multiplied 12 into x-8
(x, y) = (20, 449)
when the equations are in this form, it is easiest to substitute one of the expressions for y into the other equation. that gives
21.95x +10 = 22.45x
10 = 0.50x . . . subtract 21.95x
20 = x . . . . .multiply by 2
y = 22.45x = 22.45·20 = 449
a. what is the multipliers? <...