2007-10-04 14:40:48 · 6 answers · asked by Dawn Q 1 in Science & Mathematics ➔ Mathematics
x + (x+6) = 36
2x= 30
x=15
2007-10-04 14:46:11 · answer #1 · answered by Anonymous · 0⤊ 0⤋
6
2007-10-04 21:43:51 · answer #2 · answered by Danielle S 3 · 0⤊ 0⤋
System of equations solved by elimination with addition.
x + y = 36
x - y = 6
2x = 42
x = 21
Plug 21 back in to either equation to find that y = 15.
The sum of 21 and 15 is 36, and the difference is 6.
The smaller number is 15.
2007-10-04 21:45:15 · answer #3 · answered by cubs_woo_cubs_woo 3 · 1⤊ 0⤋
15
2007-10-04 21:50:02 · answer #4 · answered by curtisports2 7 · 0⤊ 0⤋
N1 + N2 = 36
N1 - N2 = 6
N1 = 6 + N2
(6 + N2) + N2 = 36; 6 + 2N2 = 36; 2N2 = 30; N2 = 15
N1 + 15 = 36
N1 = 21
So, N1 = 21, N2 = 15
Does this make sense?
21 + 15 = 36
21 - 15 = 6
2007-10-04 21:45:22 · answer #5 · answered by anonymous 3 · 0⤊ 0⤋
x + y = 36
x - y = 6
x = y +6
(y + 6) + y = 36
2y = 30
y = 15
The smaller number is 15; larger is 21
2007-10-04 21:44:40 · answer #6 · answered by PeterT 5 · 1⤊ 0⤋