-1.6 to both sides
-2a=4
Divide both sides by -2
a= -2
Answer:
x-5=3x+1 (x=-3)
Step-by-step explanation:
5 less (_-5)
than a number (x)
is equivalent to (=)
1 more than (+1)
than three times the number (3x)
combine them all to get x-5=3x+1
extra:
add 5 to each side x=3x+6
subtract x from each side 0=2x+6
subtract 6 from each side -6=2x
divide each side by 2 -3=x
For this case we must simplify the following expression:

Simplifying the numerator, dividing all the terms by 4, we have:

We factor by looking for two numbers that when added together give -8 and when multiplied by 12. These are: -6 and -2

So, we have to:

Simplifying the denominator:
We rewrite -17x as -18x + x:

We factor the highest common denominator of each group:

We factor the polynomial by factoring the highest common denominator (x-6):

So, we have to:

Substituting in the original expression we have:

ANswer:

1. 958-236=722
2. 878-247=631
3. 998-346= 652
4. 967-323= 644
5. 998-353= 645
6.876-322= 554
7.948-526= 422
8.968-353=615
9. 798-363= 435
10. 978-735= 243
11. 693-572= 121
12. 867-432= 435