How do you solve this Algebra equation? 2(7=3t)=-t?

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2007-10-14 16:38:26 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

Do you mean 2(7+3t)=-t?

14+6t=-t (multiply "stuff" in parenthesis by 2)
14=-7t (subtract 6t from both sides)
-2=t (divide both sides by -7)

2007-10-14 16:46:25 · answer #1 · answered by LadyPerk 2 · 0⤊ 0⤋

Do you mean 2(7-3t) = -t?

(multiply)
2*7 - 2*3*t = -t
(simplify)
14 - 6*t = -t
(add 6t to both sides)
14 = 5t
divide both sides by 5
t = 14/5 = 2.8

2007-10-14 16:47:41 · answer #2 · answered by David D 2 · 0⤊ 0⤋

Assuming:-
2(7 + 3t) = - t
14 + 6t = - t
14 = - 7t
t = - 2

2007-10-15 02:52:47 · answer #3 · answered by Como 7 · 0⤊ 0⤋