Question

How many solutions does the equation have?

4(z−5)+2=4z−18

Answer 1

First simplify
4(z - 5) + 2 = 4z - 18
4z - 20 + 2 = 4z - 18
The 4z s on both sides cancel out
-20 + 2 = -18
-18 = -18

Since this works out and there are no more variables, there is an infinite number of solutions

Answer 2

so the answer is -18

Answer 3

oh wait nvm the answer is many solutions, thanks!! :)

Answer 4

both sides are the same, therefore many solutions
4z-18=4z-18