Question

-15r – 8 = 37

Answer 1

By our ever so useful but usually overlooked "Addition property of Equality",
We can add 8 to both sides and preserve equality:
-15r - 8 + 8 = 37 + 8
-15r = 45

Another useful but overlooked property "Multiplication property of Equality"
We can multiply (-1/15) to both sides and preserve equality:
(-15r)(-1/15) = 45(-1/15)
This gives us

r = -3

:D

Answer 2

I made a typo, sorry

Answer 3

WOW0.0

Answer 4

You know, there's a shortcut to the Addition property called Transposition

Answer 5

reaLLY

Answer 6

?????

Answer 7

Yeah, I'll show you...
-15r - 8 = 37
In this sort of linear equation in just one variable, what we want to do is
bring all the terms with r (or any variable really) to one side, and bring the others to the other side...

Sounds confusing? Let me demonstrate:
-15r - 8 = 37
We want to bring the (-8) to the other side, along with the other term with no r.
Imagine it like this:
We take the (-8)
and bring it to the other side BUT we change its sign.
so it simply becomes
-15r = 37 + 8
get it? :)

Answer 8

Trust me, you won't want to go through the tedious steps of the Addition property, especially in the case of longer linear equations :)