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OpenStudy (phi):
I would first add +3x to both sides, like this
-3x+3x -2y = 20+3x
now simplify the left side. can you do that ?
OpenStudy (lovely_bae):
ok -3x+3x=6x = 23x so in other words 6x*-2y=23x.....
OpenStudy (phi):
-3x+3x means you have 3 x's and take away 3 x's
how many x's do you have ?
OpenStudy (lovely_bae):
0
OpenStudy (phi):
yes, so
-3x+3x -2y = 20+3x
becomes
-2y = 20+3x
on the right side, we can change the order (when adding, order does not matter)
so
-2y = 3x + 20
now divide both sides by -2 (both sides all terms)
on the left side -2/-2 becomes 1 so you get 1y or just y on the left side
what do you get on the right side ?
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OpenStudy (lovely_bae):
1.5.....
OpenStudy (lovely_bae):
?
OpenStudy (lovely_bae):
.............
OpenStudy (tgstudios):
it would be -1.5
OpenStudy (tgstudios):
so...
y = -1.5x + -10
or - 10
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OpenStudy (tgstudios):
so your answer would be
y = -1.5 - 10
:)
OpenStudy (phi):
you get
\[ y = \frac{3x}{-2}+ \frac{20}{-2} \\
y = -\frac{3}{2} x -10\]