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OpenStudy (anonymous):
**MEDAL** I'm making a study guide. Please help me with some formulas. Simplify -13x + (-7x) + 5x a. -25x b. -15x. c. 15x d. 25x
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OpenStudy (anonymous):
b. -15x
OpenStudy (anonymous):
How'd you get it?
OpenStudy (anonymous):
+(-7)=-7. the given expression takes the form (-13-7+5)x=-15x
OpenStudy (anonymous):
Hmm, I'm not really following...Is there a specific formula?
OpenStudy (uri):
-13x + (-7x) + 5x -13x-7x+5x -20x+5x =-15x negative sign +negative sign=positive sign negative sign+positive sign=negative sign
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OpenStudy (anonymous):
Thanks, @uri !
OpenStudy (uri):
You're welcome .:)
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