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Algebra 1
What is an equation of a line perpendicular to the line with equation y = 1  3x a.y=3x + 5 b. y=3x + 5 c.y=1/3x + 5 d. y=1/3x + 5 To solve the linear system below, which substitution of unkowns is proper ? x + 4y= 6 5x  3y =
asked by Ley on April 22, 2013 
ALGEBRA 1!PLZ HELP!
Use the Substitution method to solve the system of equations. y  2x = 5 3y  x = 5 Solve the first equation for y. y = 2x5 Substitute that for y in the second equation and solve for x. Then use the value of x to substitute back
asked by SANDRO! on November 6, 2006 
math ALGEBRA
Solve by graping the foll: A. 2X+Y=5 3XY=10 B.2X=Y+1 2XY=5 I don't know what "graping the foll" is, but problem #2 has no solution, because the lines Y = 2X 1 (from your fist equation) and Y = 2x 5 (from your second equation)
asked by DANIELLE on December 21, 2006 
How do I do this.?(Math.)
Use the Substitution method to solve the system of equations. y  2x = 5 3y  x = 5 Solve one of the equations for x or y. Let's solve the first one for y: y  2x = 5 y = 2x  5 Now let's substitute 2x  5 for y in the second
asked by Margie on February 5, 2007 
algebra
5x2y=5 y5x=3 substitution Substitute 5x +3 for y in the first equation, then solve it for x. Substitute 5x +3 for y in the first equation, then solve it for x. When I subsitute 5x+3 into the equation I get x=1/5 and y=2 is this
asked by Tony on March 20, 2007 
Math
Solve the system by addition or substitution. 3x – 4y = 8 6x – 2y = 10 Please get me on the correct track for 3x 4y =8 x=4, y=1 for 6x  2y =10 x= 2, y= 1 Solve one equation for x. 3x = 4y + 8 x = (4y + 8)/3 Insert that value
asked by Amanda on May 20, 2007 
Algebra
Please help to find x, y 1. 8xy=17 6x+y=11 2. 5x2y=17 2x+3y=3 Question no.1 8xy=17 6x+y=11 (adding the equation) __________ (y and +y will be 0) 14x =28 Taking variables to one side x=28 __ 14 14*2=28 therefore x=2 substitute
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math
Not sure about this... Need to solve by substitution 8x  4y = 16 y = 2x 4 Substitute 2x 4 for y in the first equation and solve the resulting equation for x. 8x  4(2x4) = 16 16 = 16 The two equations are not independent. One
asked by Janna on August 8, 2007 
math
Solve systems by substitution 5x  2y = 5 y  5x = 3 Substitute 5x + 3 for y in the first equation, and solve it for x. Once you have x, use either of the two equations you wrote to solve for y.
asked by Robin on August 8, 2007 
algebra
solve by substitution 3xy = 7 x+y = 9 Substitute 3x+7 for y in the second equation, and solve the resulting equation for x.
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