Ashley solved the equation for m using the following steps.

-4.5 + m = 17

-4.5  -4.5

m = 12.5

what was ashley’s error?
ashley should have subtracted 17 to both sides.
ashley should have added 4.5 to both sides.
ashley should have added 17 to both sides.
ashley’s work does not have an error.

Ashley should have added 4.5 to both sides.

Step-by-step explanation:

Given expression:

Ashley's solution:

Subtracted 4.5 to both sides and got,

Correct solution:

Adding 4.5 to both sides.

∴

Error made by Ashley was subtracting 4.5 both sides. Instead he should have added 4.5 both sides.

a) y = -3x +2

b) y = 1/2x -6

these 2 can be combined into one equation.

-3x +2 = .5x -6

8 = 3.5x

x = 8 / 3.5 = 2.2857142857

y = -3 * (8 / 3.5) +2

y = (-24 / 3.5) + 2

y = -4.8571428571

step-by-step explanation: