So, you see that when 2 pieces is considered a group, that means you have to divide. So, you divide 50/2 and it gives you 25.
Hope this helps :)
3(x+4)=36
What you need to do is divide both sides of the equation by 3 in the first part
x+4=12
Now you move the constant towards the right side and change the sign
x=12-4
Subtract the numbers to find the answer
x=8, therefore to solve 3(x+4)=36 it will give you x=8 as your answer. Hope this helps ^^
Because everything below 5 rounds down and everything about 5 rounds up 8.961 would round to 9.
Y=10x+20
y=10×5y+20
y=50y+20
-20=50y-y
-20=49y
y=-20/49