SOLUTION: -3(t-2)=12 -3+3(t-2)=12+3 (t-2)=15 t-2/-2=15/-2 t=-7.5

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Question 1137257: -3(t-2)=12
-3+3(t-2)=12+3
(t-2)=15
t-2/-2=15/-2
t=-7.5
Found 2 solutions by ikleyn, MathTherapy:
Answer by ikleyn(52915)   (Show Source): You can put this solution on YOUR website!
.

            As I understand this post,  the visitor asks to check if his  (or her)  solution is correct. 


-3*(t-2) = 12


-3t + (-3)*(-2) = 12


-3t + 6 = 12


-3t + 6 - 6 = 12 - 6


-3t = 6


Divide both sides by (-3)


t = 


t = -2.


ANSWER.  t= -2.


CHECK.  Substitute t= -2 into the given equation. You will get in the left side 

        -3*((-2) -2) = -3*(-4) = 12.   ! Correct !


Solved and checked.

The solution in your post is INCORRECT.

=================

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Answer by MathTherapy(10557)   (Show Source): You can put this solution on YOUR website!

-3(t-2)=12
-3+3(t-2)=12+3
(t-2)=15
t-2/-2=15/-2
t=-7.5
 -3(t-2)=12

-3+3(t-2)=12+3  <===== NOPE, NOPE, NOPE!! This is NOT how this is done

 <======== DIVIDE both sides by - 3

t - 2 = - 4

 

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