Answer:
x = -5
Step-by-step explanation:
the first step is calculate the sum.
-9x - 31 = 14
Then move the constant to the right side and change the sign.
-9x = 14 + 31
Then add the numbers
-9x = 45
Then divide both sides of the equation by -9
x = -5
Answer:
4 -9/20
Step-by-step explanation:
separate whole numbers and fractions: 9-5, 3/10 - 3/4
then you subtract the whole numbers: 4
after that (what i mostly use that is easy for me is cross multiplication/ Butterfly method)
12 - 30
<u>3</u> - <u>3</u> = <u>-18</u> = <u>-9</u>
10 4 40 20
Answer:
I love algebra anyways
The ans is in the picture with the steps how i got it
(hope this helps can i plz have brainlist :D hehe)
Step-by-step explanation:
A way to add fractions that always works is to multiply each numerator by the denominator of the other, then express the sum of products over the product of the denominators.
Here, you have
The sum is -1 1/12
Answer:
Girls in Mr. Chang's class: 28 - 21 ; # girl students = # total students - # boy students ; 7 girl students.
Boys in Mr. Chang's class: 28 - 7 ; # boy students = # total students - girl students ; 21 boy students.
