Asked by Muzzybunny

Can anyone help me solve this problem; 2x + 3 = 2x + 4 - 1 and explain why there are an infinite number of solutions? Thanks!!
Answered by Muzzybunny
Can anyone show me a step-by-step on how to solve it, too? Thanks!
Answered by Ms. Sue
2x + 3 = 2x + 4 - 1

2x - 2x + 3 = 3

2x - 2x + 3 - 3 = 3 - 3

0 = 0



Answered by Muzzybunny
Thank you one again Ms. Sue! You're truly amazing. :)
Answered by Muzzybunny
*once
Answered by Reiny
If , when solving an equation, the variable drops out and

1. you end up with a true statement, then there will be an infinite number of solutions, and your equation is an identity
e.g. see above

2. you end up with a false statement , then there will be no solution
e.g. 2x +3 = 2x + 5
3 = 5 , which is false
thus , no solution.
Answered by Muzzybunny
Thank you Reiny too.
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