SOLUTION: Solve the system 3x+2y=25 7x+4y=57

Question 941520: Solve the system
3x+2y=25
7x+4y=57
Answer by srinivas.g(540) (Show Source): You can put this solution on YOUR website!

Solved by pluggable solver: SOLVE linear system by SUBSTITUTION

Solve:
We'll use substitution. After moving 2*y to the right, we get:
, or . Substitute that
into another equation:
and simplify: So, we know that y=2. Since , x=7.

Answer: .

RELATED QUESTIONS
Solve each of the following linear systems by Gaussian elimination. a) 5x - 4y = -25 (answered by richwmiller)

Solve each of the following linear systems by Gaussian elimination. a) 5x - 4y = -25 (answered by richwmiller)

solve the following system: 3x + 4y + x = 14 2y + 7z = 25 -2y + 3z =... (answered by Fombitz)

Find the values of x and y that solve the following system of equations. 3x+5y=25... (answered by oscargut)

Solve the system graphically: 3x+4y=12,... (answered by jorel1380)

Solve the linear system:3x +2y=7... (answered by josgarithmetic)

Please help use Cramer's rule to solve the linear system. ( 3x-2y-z=3 x+2y-5z=-31 (answered by ewatrrr)

Solve the system of equations in Problem 3x � 2y = 12 7x + 2y = 8 (answered by Alan3354)