Solve by using your knowledge of the Distributive Property and combining like terms.
1. 5x-(9x-10)=34
-4x-10=34
-4x=44
X=-11
Did I solve this correctly? If not can someone please show me how to get the correct answer?
4 answers
Can someone please help me?!
Can somebody please help me?
well, does -11 make the equation true? Coming up with an answer is only half the battle. You also need to know how to check to see whether it is correct.
5(-11)-(9(-11)-10)
= -55-(-99-10)
= -55-(-109)
= -55+109
= 54
So, I guess you made a mistake. You could have discovered that easily yourself. So, let's do it again:
5x-(9x-10)=34
5x-9x+10 = 34
-4x = 24
x = -6
Your mistake was not noticing that -(-10) = +10
So, checking with -6, we have
5(-6)-(9(-6)-10)
= -30-(-54-10)
= -30-(-64)
= -30+64
= 34
That's better, eh?
5(-11)-(9(-11)-10)
= -55-(-99-10)
= -55-(-109)
= -55+109
= 54
So, I guess you made a mistake. You could have discovered that easily yourself. So, let's do it again:
5x-(9x-10)=34
5x-9x+10 = 34
-4x = 24
x = -6
Your mistake was not noticing that -(-10) = +10
So, checking with -6, we have
5(-6)-(9(-6)-10)
= -30-(-54-10)
= -30-(-64)
= -30+64
= 34
That's better, eh?
Good morning!
Thank you Mr. Steve for showing me how to do this problem.
Thank you Mr. Steve for showing me how to do this problem.
1 answer