6 dozen were purchased
divide the charge by the cost of one dozen
number purchased = 
= 6
When solving equations like these, our number one goal is to get x to be alone.
So given the equation lets go through it step by step.
3x - 5 = 10 + 7x (first step is to add 5 to both sides)
+ 5 = + 5 ( Now lets see what we have now)
3x = 15 + 7x ( We need the x to be alone! So lets subtract -7x from both sides.)
-7x = -7x ( now what do we have?)
-4x = 15 (okay divide both sides by 4 to isolate the x)
÷4 = ÷4 (now the 4's on the left side cancel out, and we solve on the right side)
x = 3.75
That's your answer :) Good Luck!
The answer is altitude. The answer is altitude because altitude goes straight up.
From the given graph, we can tell kl=lm
therefore,
3x + 2 = 5x - 10
3x+2-2=5x-10-2
subtract 2 from both sides.
3x+ 0 =5x-12
3x=5x-12
3x-5x=5x-5x-12
subtract 5x from both sides.
-2x=0-12
-2x=-12
(-2x)/-2=-12/-2
divide both sides by -2.
1x= 6 -12/-2=6
and of course the -2 and -2 cancel on left side leaving 1x.
x=6
KL = 3x+2 = 20 units
Answer:
this is the solution
(2−7)(3+4)
Step-by-step explanation:
