Answer:
1. w=21.2
2. j=96
3. z=13
4. k=7.56
Explanation:
To solve an equation with a variable, we need to simplify. We can simplify an equation by adding and subtracting numbers to eachother on both sides.
For the first one, simply subtract 2.5 from both sides, to get w by itself.
w+2.5=23.7
-2.5 -2.5
w=21.2
For the second one, add 32 on both sides, because on the left side it is negative, and adding it will cancel it out.
j-32=64
+32+32
j=96
For the third one, divide both sides by 5 to isolate z.
z=13
Lastly, multiply both sides by 1.2 to isolate k.
k=7.56
Hope this helps!