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How do you answer 2x plus 6y equals 32 and 5x-2y equals 12 using subtitution?
Wiki User
∙ 12y ago
First, change 2x+6y=32 to x+3y=16. Then solve for x, which is x=-3y+16. Then substitute -3y+16 as x into 5x-2y=12 and solve for y.
5(-3y+16)-2y=12
-15y+80-2y=12
-17y+80=12
-17y=-68
y=4
Then substitute 4 as y in either equation to solve for x.
5x-2(4)=12
5x-8=12
5x=20
x=4
The answer is x=4 and y=4, or (4,4)
Wiki User
∙ 12y ago
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Solving 2x plus y equals 10 and y equals x-5 subtitution?
2x+x-5 = 10 2x+x = 10+5 3x = 15 x = 5 and y = 0
Solve this equation using subtitution x plus 7y equals 39 and 3x subtract 2y equals 2?
From first equation: x = 39 - 7ySubstitute this in second equation: 3(39 - 7y) - 2y = 2ie 117 - 21y - 2y = 2ie 115 = 23yie y = 5, making x = 4.
Solve this equation using subtitution x plus y equals 10 and y equals x plus 8?
x+y = 10 and y = x+8 x+x+8 = 10 x+x = 10-8 2x = 2 x = 1 Substitute the value of x into the original equations to find the value of y: So: x = 1 and y = 9
Using the correct number of significant figures 15.76 plus 4.7509 plus 23.1 equals?
the answer is 43.6
Solve this equation using subtitution x plus 7y equals 39 and 3x-2y equals 2?
x + 7y = 39 So x = 39 - 7y Substitute for x in the second equation: 3(39 - 7y) - 2y = 2 117 - 21y - 2y = 2 115 = 23y y = 5 Substitute this value for y back into the first equation: x + 7*5 = 39 x + 35 = 39 x = 4
Is 5x2y plus 4x - 6 a binomial?
if the 5x2y means 5x2y + 4x - 6 then yes it is a binomial but if the 5x2y means 5x * 2y + 4x - 6 then no it is not a binomial a nomial means one degree. a binomial means something to the second power. a polynomial means anything that has a 3rd power and greater.
What is Solve By Subtitution y0.5x plus 2 -y-2x plus 4?
When using substitution the answer to y0.5x plus 2 -y-2x plus 4 is y = -2 (x-1.
Solving 2x plus y equals 10 and y equals x-5 subtitution?
2x+x-5 = 10 2x+x = 10+5 3x = 15 x = 5 and y = 0
Solve this equation using subtitution x plus 7y equals 39 and 3x subtract 2y equals 2?
From first equation: x = 39 - 7ySubstitute this in second equation: 3(39 - 7y) - 2y = 2ie 117 - 21y - 2y = 2ie 115 = 23yie y = 5, making x = 4.
Solve this equation using subtitution x plus y equals 10 and y equals x plus 8?
x+y = 10 and y = x+8 x+x+8 = 10 x+x = 10-8 2x = 2 x = 1 Substitute the value of x into the original equations to find the value of y: So: x = 1 and y = 9
Solve this equation using subtitution x plus 2y equals 7 and 2x plus y equals 8?
x + 2y = 7 So x = 7 - 2y Substitute this value for x in the second equation which then is: 2(7 - 2y) + y = 8 Simplify: 14 - 4y + y = 8 -3y = -6 y = 2 Put this value of y back into the first equation: x + 2*2 = 7 ie x + 4 = 7 x = 3
Using substition what is the answer to y equals 3x plus 11 y equals -2x plus 1?
go to http://webmath.com/. it helps a lot.
Using the correct number of significant figures 15.76 plus 4.7509 plus 23.1 equals?
the answer is 43.6
Solve the system of equations using linear combination a plus c equals 9 8a plus 4.5c equals 58?
a=5: c=4
1 plus 1 equals 2 plus 2 equals 4 plus 4 equals 8 plus 8 equals 16 plus 16 equals 32 plus 32 equals 64 plus 64 equals 128 plus 128 equals 256 plus 256 equals 512 plus 512 equals 1024 plus 1024 equals?
2048
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Using a calculator
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