How do I solve 15-4t=3 because when I tried to solve it kept becoming negative and how would it become positive from negative when you divide a positive and a negative because the output between that is always negative?

Question

1631 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2018-05-16T20:46:17

#t=3#

#1.# Subtract #15# from both sides first,

#15-4t -15 = 3-15" "#leaving you with

# -4t=-12.#

#2#. Divide by #-4# to isolate t .

# t=(-12)/-4#

#3.# Answer is #t=3#

Answer 2 · 2018-05-16T20:47:39

#t=3#

#15-4t=3#

#15-15 -4t=3 -15#

# (-4t)/(-4)=(-12)/(-4)#

# t=3#

Answer 3 · 2018-05-16T21:53:54

#t=3#

#color(white)(xxxx)15color(blue)(-4t) =3" "larr# add #4t# to both sides

#15-4t+4t = 3color(blue)(+4t)#

The term in #t# is now positive on the right. Isolate it.

#15color(white)(xxxxxxx)=3color(blue)(+4t)" "larr# subtract # 3# from both sides

#15-3color(white)(xxxx) = 3+4t-3#

#12color(white)(xxxxxxx) = 4t" "larr# divide by #4#

#3color(white)(xxxxxxxx)=t#