SOLUTION: Pasha is thinking of a number such that when twice the number is added to three times one more than the number seh gets the same result as when she multiplies four times one less t
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Question 447221: Pasha is thinking of a number such that when twice the number is added to three times one more than the number seh gets the same result as when she multiplies four times one less than the number. What number is Pasha thinking about?
Found 2 solutions by ankor@dixie-net.com, Ashley.hall:
Answer by ankor@dixie-net.com(22740) (Show Source): You can put this solution on YOUR website!
Pasha is thinking of a number such that when twice the number is added to three
times one more than the number he gets the same result as when he multiplies four times one less than the number.
What number is Pasha thinking about?
:
Let x = "a number"
:
2x + 3(x+1) = 4(x-1)
2x + 3x + 3 = 4x - 4
5x - 4x = -4 - 3
x = -7 is the number
;
:
See if that works
2(-7) + 3(-7+1) = 4(-7-1)
-14 + 3(-6) = 4(-8)
-14 - 18 = -32
Answer by Ashley.hall(1) (Show Source): You can put this solution on YOUR website!
2x + 3(x + 1) = 4(x - 1)
2x + 3x + 3 = 4x -4
5x +3 = 4x -4
-5x -5x
+3 = -1x -4
+4 +4
7 = -1x
___ ____
-1 -1
-7 = x
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