Answer:
Explanation:
Add the 3/4 to cross it out on the left side and whatever you do to one side you do to the other side. so you add 3/4 or .75 on to 10 to get 10.75.
k-3/4=10
k=10.75
Subtract the 5/7 from the Z and subract it from -3 to get, -3.71.
Z+5/7=-3
Z=3.71
Subtract 9 from the left side and subtract 9 from the right side.
9+t/12=-3
t/12=-12
Then you would multiply by 12 from the left side and multiply by 12 from the right side.
t/12=-12
t=-144