How do you solve #15t - 5= - 35#?

Question

2274 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-02-02T13:57:24

t = -2

Rearrange to get the terms in t on one side, and the numbers on the other. Make sure you apply the rule of "change the side = change the sign".

#15t - 5 = -35#

#15t = -35 + 5#

#15t = -30#

#t = -30 / 15 = -2#

Answer 2 · 2017-02-02T13:57:54

#t=-2#

Add 5 to both sides

#15t-5+5=-35+5#

but -5+5=0 giving

#15t+0=-30#

#15t=-30#

Divide both sides by 15

#15/15 t=-30/15#

but #15/15=1" and "-30/15=-2#

#1xxt=-2#

Not that is not good mathematical practice to show the #1xxt# it should just be #t#

#t=-2#