2007-08-20 08:18:47 · 14 answers · asked by angel 1 in Science & Mathematics ➔ Mathematics
6x+3y = 3(2x+y), so = 60.
2007-08-20 08:23:58 · answer #1 · answered by John V 6 · 1⤊ 0⤋
This problem is just a matter of multiplying the whole equation by the same number.
Take a step by step approach:
1) Start with the x. What number, when multiplied by 2, gives you 6? The answer is 3.
2) Now the y. What number, when multiplied by 1 gives you 3? The answer is 3.
3) Since that whole side of the equation is multiplied by 3, you must also multiply the right side of the equation by 3.
4) 20 times 3 is 60
5) Now you know that 6x + 3y = 60.
2007-08-27 08:29:47 · answer #2 · answered by Anonymous · 0⤊ 0⤋
=3*(2x+y)=3*20
=6x+3y=60
the value of 6x+3y is 60
2007-08-28 10:03:15 · answer #3 · answered by `*MiMi*` 2 · 0⤊ 0⤋
2x + y = 20
3(2x + y) = 3 * 20
6x + 3y = 60
Answer: 6x + 3y has a value of 60.
2007-08-25 12:36:50 · answer #4 · answered by Jun Agruda 7 · 4⤊ 0⤋
60
2007-08-28 14:13:37 · answer #5 · answered by Anonymous · 0⤊ 0⤋
60
2007-08-27 03:28:32 · answer #6 · answered by oatestag45 1 · 0⤊ 0⤋
60
2007-08-20 15:29:52 · answer #7 · answered by theriddler2405 1 · 0⤊ 0⤋
60
2007-08-20 15:29:10 · answer #8 · answered by Anonymous · 0⤊ 0⤋
we have 2x+y=20
& 6x+3y has a common factor, 3.
so 6x+3y = 3(2x+y)
and 2x+y = 20
therefore, 3(2x+y) = 3(20) = 60
hence, 6x+3y=3(2x+y)=3(20)=60
nice.
2007-08-28 01:36:30 · answer #9 · answered by antzjosh 2 · 0⤊ 0⤋
6x+3y=3(2x+y)....(1)
so 2x+y=20
then 3(2x+y)=3*20=60
2007-08-28 00:49:31 · answer #10 · answered by Esther 2 · 0⤊ 0⤋