algebra 1
posted by no one needs to know .
how do you solve the following questions using the substitution method?
3xy=3 3x+6y=48
3x5y=21 5x+6y=32
2x+4y=12
4x+16y=8

algebra 1 
bobpursley
Substitution? I would solve for x in the first equation:
x=62y check that. Then put that for x into the second equation...
4(62y)+16y=8 and solve for y.
Respond to this Question
Similar Questions

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 it.How … 
algebra
i need help with these problems (either a solution or how to plug them into a graphing calculator): 1) Solve by substitution or elimination 4/x + 1/y + 2/z = 4 2/x + 3/y  1/z = 1 1/x + 1/y + 1/z = 4 2)Solve the system of equations … 
algebra
Solve the following system using the substitution method: 3x + y = 3 y = 2x + 7 
algebra
Solve the following system using the substitution method: 6x  2y = 4 y = 3x + 2 
Algebra
Solve the following system of equations using the substitution method:5x7y=18 and 4x+3y=20 
Algebra 1
bobpursey, In this problem you helped me with earlier: Solve using any appropriate method. y = 2×  5, y = ½× + 1 Substitution, substitute for y. 2×5=½ × + 1 3/2 x=6 x=4 y= 2*45=3 How did you choose which method you were going … 
Algebra Help!!
solve using the substitution method. y= 5  3x 4x + y= 7 
Algebra
If 2x + 2y = 20 & 5x  3y = 15 Solve using the substitution method. 
Algebra
solve using substitution method: 4x+5y=21 x=486y 
Algebra PLEASE HELP!!
What advantages does the method of substitution have over graphing for solving systems of equations?