Basically you know that the 2 wholes from both sides cancel out.
Set up the equation, 5/8 = 3/12 + 3/x
3/x = 5/8 - 3/12
Set them to have a common denominator, 3/x = 15/24 - 6/24
3/x = 9/24
Simplify 9/24 and you will get 3/8
3/x = 3/8
Obviously this means x = 8
Answer:
y > 2 - x/3
Step-by-step explanation:
x + 3y > 6 subtract x from both sides
<u>-x -x</u>
3y > 6 -x divide both sides by 3
<u>/3 /3</u>
y > 2 -x/3
graph as a dotted line and shade everything above above it.
Answer:
x = -4
Step-by-step explanation:
1/4(x - 12) = -4
Multiply both sides of the equation by 4
x - 12 = -16
Move the constant to the right-hand side and change its sign
x = -16 + 12
Calculate the sum
x = -4
I think it would be 79.
I could be wrong, though.