SOLUTION: what does a = in this
2a+5=a+9
Algebra.Com
Question 498892: what does a = in this
2a+5=a+9
Answer by texttutoring(324) (Show Source): You can put this solution on YOUR website!
2a+5=a+9
Think of an algebraic equation like a balance or a teeter totter. Any operation you do to one side, you must do to the other side. Let's try to get a on the left side, and all the numbers on the right side:
2a+5=a+9
2a-a+5 = a - a + 9
a+5 = 0+9
a+5 = 9
a = 9 - 5
a = 4
Let's check it to see if it's right:
2a+5=a+9
2(4) + 5 = 4 + 9
8+5 = 4+ 9
13 = 13
Yes, it's correct. a=4
Hope that helps!
RELATED QUESTIONS
9-2a=5... (answered by Tatiana_Stebko)
What is a in this equation?... (answered by robertb)
2a+9=a+5 how do I solve this... (answered by Timnewman,MathTherapy)
How would you write this rational expression in lowest terms?... (answered by solver91311)
-(5-(a+1))=9-(5-(2a-3)) (answered by rfer)
7a-3=2a+9-a (answered by jim_thompson5910)
2a+1 when a= 9
(answered by Fombitz)
(8/(a-9))=5/(2a+1) (answered by lynnlo)
9-5[3(a+4)]-2a= (answered by stanbon)