How many solutions does the equation have http://static.k12.com/bank_packages/files/media/mathml_edb583a3562463eeb3d6c0b27ea5a96ea9da0163_1.gif
4x + 2x - 6 = 8x + 12 can you do the next step?
umm i really have no clue
all i did was distribute 2(x - 3) = 2x - 6
so you have to combine your x terms together now 2x + 4x = 6x
ok
6x - 6 = 8x + 12 ---->take away 6x from both sides -6 = 2x + 12 ----- take away 12 from both sides -18 = 2x divide by 2 on both sides -9 = x
how many solutions?
1
right, If you get x = some number, that is 1 solution If you get a false statement like 5 = 12, then zero solutions if you get a true statement like 5 = 5,. then you have an infinite number of solutions.
cool ! (:
help with one more i promise xD sorry
k
its 8+2 (8x -6 ) =
ok using the rules i wrote above, first distribute out the given part of the equation 8 + 16x - 12 =
Choose exactly two answers that are correct. A. 2(4x + 7) B. 9x – 10 C. 16x – 4 D. 4(4x – 1)
okay
what you want is a true statement, like 5x + 5 = 5x + 5,
so from the given, 8 + 16x - 12 add the numbers first 16x - 4 Now factor out a common 4 from each of those terms to get... 4(4x -1)
4(4x-1) ?
that gives you two answers
okay (: how do i find the other one
it was the first step i did, all you do is add the numbers and get 16x - 4
oooohhh xD youre amazing thanksss
16x - 4 = 16 x - 4 -4 = -4 true, and recall the rule, TRUE means infinite solutions
ohh okay
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