i am haveing trouble solving this. can you help please ??
Which equation is equivalent to 3(4x - 2) = 4(x + 2)? Explain how you know.
(HINT: Did you use a specific property?)
A. 12x -2 = 4x + 2
B. 4x - 6 = x + 8
C. 12x - 6 = 4x + 8
D. 12x - 3 = 4x + 4
2007-12-11 05:29:43 · 12 answers · asked by Anonymous in Education & Reference ➔ Homework Help
ok, the answer is c because
3(4x-2) is basically 3x4x= 12x and -2 x 3=-6 so its 12x-6
4(x+2) is 4*x = 4x and 4 *2= 8 which is 4x+8
so its c basically we have to expant the brackets (times out the brackets)
2007-12-11 05:38:19 · answer #1 · answered by man_aip 1 · 0⤊ 0⤋
C is the correct answer - use the distributive property on the equation:
3(4x-2)=4(x+2) Multiply by the numbers outside the brackets:
3*4x -3*2 = 4*x +4*2 and that gives you:
12x-6=4x+8 which is answer "C".
Take care
2007-12-11 05:36:06 · answer #2 · answered by remowlms 7 · 0⤊ 0⤋
It's (C) becasue u multiply out the brackets so 3x4 is 12 but there is an 'x' so the answer is 12 x then 3x2 is 6 so it's 12x-6 = 4x'x' so 4x then 4x2 is 8 so altogether it is 12x-6=4x+8
2007-12-11 05:44:01 · answer #3 · answered by Shmee...x 3 · 0⤊ 0⤋
the answer is c, to solve the problem you have to use distribution. 3(4x-2). 3 times 4 is 12 and it becomes 12x. and 3 times 2 is 6 so it becomes 12x-6
4(x+2) 4 times x becomes 4x and 4 times 2 is 8 so its 4x+8
and then you put them together and you get: 12x-6=4x+8
do you get that?
2007-12-11 05:36:23 · answer #4 · answered by krystal w 2 · 0⤊ 0⤋
3(4x-2)=4(x+2)
same as 12x -6 =4x+8 take bracket away by multiplying
gives 'C' as answer
2007-12-11 05:36:15 · answer #5 · answered by Jaco W 3 · 0⤊ 0⤋
yea u multiply out the brackets so its C.
3(4x-2) is jus the same as (3 x 4x) + (3 x -2) so its 12x -6
2007-12-11 05:44:20 · answer #6 · answered by Anonymous · 0⤊ 0⤋
To get answer C., we'll use the distributive property:
12x - 6 = 4x + 8
that's it! :)
2007-12-11 05:34:46 · answer #7 · answered by Marley K 7 · 0⤊ 0⤋
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2016-12-17 14:40:39 · answer #8 · answered by ? 4 · 0⤊ 0⤋
C. I think its called the distributive property, but I'm not sure about that.
2007-12-11 05:34:21 · answer #9 · answered by hottotrot1_usa 7 · 0⤊ 0⤋
C
You just multiply it out (3x4)x-(3x2)=(4xx)+(4x2)
2007-12-11 05:33:06 · answer #10 · answered by CanProf 7 · 0⤊ 0⤋