If 3x+2y=12 and -4x+6y=24 what is the value of -x+2y
Answers
If you are not satisfied with the answer or you can’t find one, then try to use the search above or find similar answers below.
Find similar answers
Mathematics, added 2021-03-05 22:16:41
Mathematics, added 2021-03-05 21:10:25
RT has the endpoints (0, 2) and (4, 2). What is its midpoint? (4, 3) (2, 2) (1, 1) (1, 3) ...
Mathematics, added 2021-03-05 20:04:48
RT has the endpoints (0, 2) and (4, 2). What is its midpoint? (4, 3) (2, 2) (1, 1) (1, 3) ...
Mathematics, added 2021-03-05 09:46:48
Find the slope of the line that passes through (4, 1) and (7, –2). 1 1/3 -1/3 -1 ...
Mathematics, added 2021-03-05 08:45:32
Find the slope of the line that passes through (4, 1) and (7, –2). 1 1/3 -1/3 -1 ...
Mathematics, added 2021-03-05 04:20:31
Mathematics, added 2021-03-05 03:15:38
Mathematics, added 2021-03-04 23:42:55
Mathematics, added 2021-03-04 22:08:04
Mathematics, added 2021-03-04 08:20:41
What is the distance between M(2, –7) and N(10, 9)? 68 148 160 320 ...
Mathematics, added 2021-03-04 06:44:05
What is the distance between M(2, –7) and N(10, 9)? 68 148 160 320 ...
Answered by Professor1994
(1) 3x+2y=12 (2) -4x+6y=24 Solving the system of equations using the method of substitution: Isolating y in the first equation: (1) 3x+2y=12→3x+2y-3x=12-3x→2y=12-3x→2y/2=(12-3x)/2→y=(12-3x)/2 Replacing "y" by (12-3x)/2 in the second equation: (2) -4x+6y=24 y=(12-3x)/2→-4x+6[(12-3x)/2]=24 Solving for x: -4x+3(12-3x)=24 -4x+36-9x=24 -13x+36=24 -13x+36-36=24-36 -13x=-12 -13x/(-13)=-12/(-13) x=12/13 Replacing "x" by 12/13 in y=(12-3x)/2 x=12/13→y=[12-3(12/13)]/2 y=(12-36/13)/2 y={[(13)(12)-36]/13}/2 y=[(156-36)/13]/2 y=(120/13)/2 y=(120/13)(1/2) y=60/13 x=12/13; y=60/13 -x+2y=-12/13+2(60/13) -x+2y=-12/13+120/13 -x+2y=(-12+120)/13 -x+2y=108/13 Answer: The value of -x+2y is 108/13