SOLUTION: 42. Is �4 a solution to the equation 7x � 5 + 3x = 6 + x � 10 Thanks!!!!!!!!!!!

Question 58023: 42. Is �4 a solution to the equation 7x � 5 + 3x = 6 + x � 10
Thanks!!!!!!!!!!!
Found 2 solutions by checkley71, rcmcc:
Answer by checkley71(8403) (Show Source): You can put this solution on YOUR website!
7X-5+3X=6+X-10
7*-4-5+3*-4=6-4-10
-28-5-12=6-14
-45=-8 THUS (-4) IS NOT A SOLUTION.
Answer by rcmcc(152) (Show Source): You can put this solution on YOUR website!
7x � 5 + 3x = 6 + x � 10
is -4 the solution... No.
when you substitute in -4 for x you recieve the answer -35=-8, they are unequal.
7x � 5 + 3x = 6 + x � 10
first you can combine like terms
10x-5=x-4
remove the x from the right hand side and you get
9X-5=-4
remove the -5 from the right hand side
you get the equation
9x=1
divide by 9
x=(1/9)
when you substitute in to the equation (1/9) for x you get the statement
-3.8888=-3.8888
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