Question

Solve for b: y = mx + b
+mx + mx
y + mx = b

Answer 1

b=−3mx+y.

Explanation:

Answer 2

Here's what I got. First of all, did you meant y=mx+b+mx+mxy+mx=b, because that's undefined, or did you meant y=mx+b+mx+mx, which is b=−3mx+y.