Question

solve the equation
3x5=2(2x-7)
(I then got 3x+5=4x-14. I am stuck because when I continue, the answer doesn't make sense.)

Answer 1

3x5? like 15? or is that a variable x raised to 5 like x^5?

Answer 2

I'm assuming the equation is 3x + 5 = 2(2x-7) as you didn't include the plus sign the first time you wrote the equation.

3x + 5 = 4x - 14
3x + 19 = 4x
x = 19

Answer 3

the goal is to get all the x terms to one side, everything else to the other side

3x+5=4x-14

3x+5+14=4x -14+14 ... Add 14 to both sides.

3x+19 = 4x

19 = 4x-3x ... Subtract 3x from both sides.

19 = 1x

19 = x

x = 19

Answer 4

i don't know how 3x5 became 3x+5
but in the natural world we can call that a product of sorcery

Answer 5

@nincompoop She mentioned the equation twice and only forgot the plus the first time.

Answer 6

probably just a typo and meant to say 3x+5 instead of 3x5

Answer 7

or maybe the second one with +5 is a typo too

Answer 8

thank you every one! sorry about the typo. I forgot to add the + sign after 3x. Thank you very much ^.^

Answer 9

@nincompoop The answer wouldn't be an integer if it was treated as 3 * 15.

Answer 10

I meant to say 3 * 5. Now I'm making typos too.

Answer 11

contagious