MATH
posted by Anonymous .
Solve system of equations algebraically.
1. 3x3y=24 and 2x+5y=37
2. 9x+10y=2 and 45x50y=11
3. 9x3y=3 and 18x+6y=6
4. 5x6y=23 and 8x+7y=29
5. 9x7y=4 and 5x+3y=46

I will do the last one, you do the others
5.
9x  7y = 4
multiply each term by 3 > 27x  21y = 12
5x + 3y = 46
multiply each term by 7 > 35x + 21y = 322
add these last two equations
62x = 310
x = 5
sub into
5(5) + 3y = 46
3y=21
y = 7
x= 5, y = 7
Respond to this Question
Similar Questions

Algebra
Solve the system 9x5y=119 18x10y=238 Double both sides of the first equation and you have 18x10y =238 which is the same as the second equation. Since the two equations are not independent, there are no unique solutions. Thee are … 
math b
solve each system of equations algebraically: x^2+y^2=18 x+y=4 
Math
Solve the system of linear equations by elimination. Thank You for your help. 8x+10y=3 3x5y=2 
math
Solve the following linear system of equations. 3x2y+z=2 xy+z=2 5x+10y5Z=10 
Math
1/2z  1/4w = 1/6 1/2z + 1/4w = 1/6 Solve the system of equations algebraically. 
PLEASE CHECK
1.)Solve for y in the following system of equations. x + 4y = 38 x  6y = 58 My answer 1.) 10 2.) 6 3.) 12 4.) 10 2.)Solve for y in the following system of equations. x  10y = 50 4x + 6y = 4 1.) 6 2.)3 3.)3 My answer4.)6 
pre calculus
Algebraically solve the system of equations using any method you wish 3x10y+z=5 4x+9yz=6 13y+z=2 
Pre Calculas
7. For the function defined by: f(x)= {x^2, x<=1} {2x+1, x>1} a. evaluate f(0) 8. Solve the following system of equations algebraically. Verify your solution either graphically or by using matrices. 3xy=0 5x+2y=22 9. Solve the … 
math homework
solve the system of equations algebraically for x and y { x^2 + y^2 = 26 x + y = 6 a. (1,5) (1,4) b. (4,5) (5,4) c. (5,1) (5,1) d. (1,5) (5,1) e. no solution 
Maximize P=60x+50y
Maximize P=60x+50y . x+y≤80 5x+10y≤560 50x+20y≤1600 x≥0 y≥0 Just need help in finding s=