Last Math problem I'm struggling with.....
Solve and check your answers.
-4(2x - 3) = -8x + 5
2007-10-05 12:12:11 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
- 8x + 12 = - 8x + 5
Error in question.
2007-10-06 03:01:01 · answer #1 · answered by Como 7 · 1⤊ 0⤋
-4(2x - 3) = -8x + 5
-8x +12 = -8x +5
this gives the same x value on both sides with different unlike terms
-8x +12 can not be equal to -8x +5 unless x in an UNREAL (or imaginiany) number
2007-10-05 19:18:50 · answer #2 · answered by David F 5 · 0⤊ 0⤋
First distribute:
-4(2x) -(-4)(3) = -8x +5
-8x +12 = -8x +5
Add 8x to both sides:
-8x +8x +12 = -8x +8x +5
12 = 5
Since this is not true, there is no solution.
2007-10-05 19:20:11 · answer #3 · answered by sayamiam 6 · 0⤊ 0⤋
distribute the 4. you get -8x + 12 = -8x + 5. then subtract 12. you get -8x = -8x - 7. add 8x. the answer is 0= -7, which is no solution
2007-10-05 19:20:49 · answer #4 · answered by Anonymous · 0⤊ 0⤋
-on expanding you get
-8x + 12 = -8x + 5 Which is not possible as 12 does not equal 5
Is the question correct?
2007-10-05 19:16:52 · answer #5 · answered by Monah 3 · 0⤊ 0⤋
The problem does not make sense.
-4(2x - 3/2.4) = -8x + 5
or
-4(2x - 3) = -8x + 12
2007-10-05 19:28:41 · answer #6 · answered by Anonymous · 0⤊ 0⤋
-4 times 2x = -8x ....
-4 times -3= 12
-8x+12= -8x +5
-8x+7=-8x
wow im struggling too i think,
is it undefined?
either that
or x = -7...
2007-10-05 19:17:35 · answer #7 · answered by missmelissa12345 2 · 0⤊ 2⤋