<u>2/5 x + 1/3 x = 22</u>
First of all, I've been answering so many of these things lately that I'm
getting really tired of 'x'. Let's call the unknown number ' Q ' instead.
<u>2/5 Q + 1/3 Q = 22</u>
Multiply each side by 5 :
2Q + 5/3 Q = 110
Multiply each side by 3 :
6Q + 5Q = 330
Add the like terms on the left side:
11Q = 330
Divide each side by 11 :
<u>Q = 30</u> .
Answer:
37
Step-by-step explanation:
45+98+x=180
Answer:
5+4x=-11
Step-by-step explanation: First it says "The sum of 5 and four times a number" which going to be 5+4x because 4 time a number so it's going to be 4x. Then the last thing you will need to do is to add in the equal sign which the whole equation going to be 5 + 4x = -11.
Answer:
The two numbers can be -12 and 11, or 11 and -12.
Step-by-step explanation:
xy=-132
x+y=-1
-------------
x=-1-y
(-1-y)y=-132
-y-y^2=-132
-y^2-y-(-132)=0
-y^2-y+132=0
y^2+y-132=0
factor out the trinomial,
(y-11)(y+12)=0
zero property,
y-11=0, y+12=0,
y=0+11=11,
y=0-12=-12
x+11=-1 & x+(-12)=-1
x=-1-11=-12
x=-1-(-12)=-1+12=11
