Question

What is the solution to the equation?

2q + 18 = –5q – 3

A.
q = –5

B.
q = –3

C.
q = 3

D.
q = 5

Answer 1

Isolate q

Answer 2

Start by combining the LIKE TERMS

Answer 3

20q?

Answer 4

hmmm not quite
We want to combine like terms this would mean subtracting and adding from the other side of the equation

Answer 5

Step 1: Add 5q to both sides.
2q+18+5q=−5q−3+5q

Answer 6

Oh so -2 on both sides?

Answer 7

I didn't see that

Answer 8

You can also do it that way :)

Answer 9

22q and 8q?

Answer 10

\[\huge ~2q+18+5q=−5q−3+5q\]

Answer 11

whats 5+2=?
whats -5+5?

Answer 12

7 and 0

Answer 13

Good so now we have
\[\huge~7q+18=-3\]
any ideas on what the next step may be?

Answer 14

-3 on both sides?

Answer 15

hmm no we are isolating q so subtract 18

Answer 16

From both sides

Answer 17

I was gonna say -18 but I didn't think so

Answer 18

Well you were right :)
-3-18=?

Answer 19

0

Answer 20

And -11

Answer 21

no try again.

Answer 22

-21

Answer 23

good whats -21/7

Answer 24

-3

Answer 25

Good so we get x=-3 :)

Answer 26

Thank you again!!

Answer 27

:)