I am assuming theres an addition sign between the 3 and 4.
So basically you want to multiply the 5x by both terms so it will end up being
(5x•3) + (5x•4)
Now simplify:
15x+20x
Hope this helped ^_^
2(c-3)=s
because you have to subtract 3 years from sherman's age first, so you need the parentheses
Well.. .not exactly what you're asking, but the relationship of them is

so... hmm to add some
for example let's say
Step-by-step explanation:
diagonals bisect
5u-10= 2u+2
3u = 12
u=4
v/3 = 6
v=18