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Mathematics 19 Online
OpenStudy (anonymous):

x+2/3=-4

OpenStudy (anonymous):

what would x= @Michele_Laino

OpenStudy (anonymous):

@iGreen

OpenStudy (anonymous):

@KamiBug

OpenStudy (kamibug):

Is this the equation? \[x+\frac{ 2 }{ 3 }=-4\] or this? \[\frac{ x+2 }{ 3 }=-4\]

OpenStudy (anonymous):

the second one

OpenStudy (kamibug):

Cool. ^.^ Just multiply both sides by 3 then subtract 2 from both sides. :) x + 2 = -12 x = -12-2 x = ?

OpenStudy (anonymous):

so x=-10

OpenStudy (kamibug):

Check again. We're subtracting 2 from -12, not adding... :)

OpenStudy (anonymous):

oh it would be -14

OpenStudy (kamibug):

You got it! ;D

OpenStudy (anonymous):

@KamiBug and could u help me with a few more

OpenStudy (kamibug):

Sure.

OpenStudy (anonymous):

ok Evaluate the expression by using the given values of the variables. y ÷ 3 • 2 – 8 ÷ x + 5 where x = 4 and y = 12 A. 5 B. 21 C. 9 D. 11

OpenStudy (anonymous):

sorry it is y ÷ 3 • 2 – 8 ÷ x + 5 where x = 4 and y = 12

OpenStudy (anonymous):

@KamiBug

OpenStudy (kamibug):

Plug in the given values for the variables and solve. :) 12/3*2-8/4+5 = 11

OpenStudy (anonymous):

ok nvm here is another one t+7/5=-4

OpenStudy (anonymous):

@KamiBug

OpenStudy (anonymous):

@KamiBug

OpenStudy (anonymous):

@iGreen

OpenStudy (kamibug):

Multiply both sides by 5 then subtract 7 from both sides. t+7=-20 t=-20-7 t=?

OpenStudy (anonymous):

18

OpenStudy (anonymous):

Identify the solution set of the inequality using the given replacement set. x < –7; {–10, –7.2, –7, –6.9, 6.5, 9} A. {–7, –6.9, 6.5} B. {–10, –7.2} C. {–6.9, 6.5} D. {–10, –7.2, –7} @KamiBug

OpenStudy (kamibug):

Actually it is -27, not 18. :P

OpenStudy (anonymous):

oh ok thanks =)

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