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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
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Im lost i don't know how to do this can someone show me step by step how to solve this For what value does c does the equation have one real root? Hint using the values of a and b found in the equation, solve D = 0 for c. Consider
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Im lost i don't know how to do this can someone show me step by step how to solve this For what value of c does the equation have one real root? Hint using the values of a and b found in the equation, solve D = 0 for c. Consider
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The measures of two supplementary angles are in the ratio 5:1. What is the measure of the smaller triangle? A/B = 5 A + B = 180 Solve those 2 equations in two unknowns. B is the smaller angle. Hint: substitute 5B for A in the
asked by Peggy on February 23, 2007 
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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
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Solve 2xy+3z=8 x6yz=0 6x+3y9z=24 Did you notice that your third equation has the same normal as the third one? So visually I see two parallel planes intersected by third nonparallel plane, namely the second equation. So
asked by Lily on April 21, 2007 
Substitution MethodPlz help
Use the Substitution method to solve the system of equations. x + y = 4 x  y = 2 solve for x in the second equation. x= y+2 Put that in for x in the first equation: x+y=4 (y+2) + y = 4 solve for y. Then, x= y+2 i don't get
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PreAlgebra
If the perimeter of a rectangle is 38 ft and the width is 9 ft, find its length. [Hint: The perimeter of a rectangle is given by P = 2L + 2W.] I don't know why this is a problem for you. P = 38 and W = 9. Solve for L. You have
asked by Tammy Evert on July 16, 2006 
Algebra
To solve the system of equations, which expression could be substituted for x into the first equation? 3x5y=14 x+4y=10 a)104y b)4y+10 c)(1/4)x+(5/2) d)(1/4)x+(5/2) I have another problem just like this one so if you could
asked by maddie on July 27, 2007