Hi there
ax + z = aw-y
We need to solve for a
Since we have 2 a in the equation we need to eliminate one of them, so let's do it.
So let's add -aw to both sides
ax + z -aw = aw -y -aw
-aw + ax + z = -y
Hint: Every time you see something in a equation that you don't need all you have to do is eliminate it so you can reach where you want to reach.
So as you can see up here, we have z which one of the thing that we don't need so let's eliminate it in the equation
We can eliminate z by adding -z to both sides
-aw + ax + z - z = -y -z
-aw + ax = -y -z
Now we have two common variables which is a, so when you have two common factor all you have to do is factor out
a( w + x ) = -y - z
Now the final step is to divide -w+x to both sides
a(w+x)/(-w+x) = -y-z/ -w+x
a = -y -z / -w+x (Alll the numerator divide by the deno)
I hope that's help..
If you have any questions or suggestions please let me know :)
