SOLUTION: −20 = −4x − 6x Can someone please explaain in detail how to solve this it would be so helpfut thank you
Algebra ->
Expressions-with-variables
-> SOLUTION: −20 = −4x − 6x Can someone please explaain in detail how to solve this it would be so helpfut thank you
Log On
Question 389619: −20 = −4x − 6x Can someone please explaain in detail how to solve this it would be so helpfut thank you Found 2 solutions by ankor@dixie-net.com, josmiceli:Answer by ankor@dixie-net.com(22740) (Show Source):
You can put this solution on YOUR website! −20 = −4x − 6x
multiply by -1, get rid of all those negatives
20 = 4x + 6x
Add like terms
20 = 10x
divide both sides by 10
2 = x
:
:
Check in original equation
−20 = −4(2) − 6(2)
-20 = - 8 - 12
You can put this solution on YOUR website! As long as you do the same thing to both sides
of the equation, it's OK
First multiply both sides by
Now you simply have to know that
(-)x(-) = (+) is a common factor in and
so, you can express the right sides as
Now the equation becomes
Divide both sides by