algebra
posted by vanessa .
Use linear combinations to solve these systems. 5r3s=12 3r+55=28

3r+55=28
3r = 27
r = 9
5r3s=12
(5 * 9)  3s = 12
45 3s = 12
3x = 57
x = 19
Respond to this Question
Similar Questions

Algebra HELP
USE LINEAR COMBINATIONS TO SOLVE THE SYSTEM OF LINEAR EQUATIONS (please show steps) 1) X+8Y=16 2) 4X+5Y=2 3)4Y=153X 3X+4Y=36 5X4Y=23 2Y=3X+21 
Math
use linear combinations to solve the system of linear equations. 2x+y=4 xy=2 
maths
use the substitution method to solve the linear system. 1. 3x=9 x+2y=9 3x/3 = 9/3 x = 3 x(3)+2y = 9 3+2y = 9 2y = 12 y = 6 is (3,6) correct? 
algebra
use linear combinations to solve these system. 3x+2y=22 9x8y=4 
Math
Use linear combinations to solve the system of linear equations. 5x=4y30 2x+3y+12 
math
PLEASE!!!!i need help on these 4: *4y=153x 2y=3x+21 *4x=5y14 y=6x9 *5x=4y30 2x=3y=12 *2/3y=10+4x 5x=1/3y8 use linear combinations to solve the system of linear equations thank you!!! 
math
PLEASE!!!!i need help on these 4: *4y=153x 2y=3x+21 *4x=5y14 y=6x9 *5x=4y30 2x=3y=12 *2/3y=10+4x 5x=1/3y8 use linear combinations to solve the system of linear equations thank you!!! 
math
i only need help on these two: *2/3y=10+4x 5x=1/3y8 *5x=4y30 2x+3y=12 DIRECTIONS:use linear combinations to solve the system of linear equations.. thanks :) 
algebra
use substitution method/linear combinations to solve then tell how many solutions they have 7x+7y=7 and 2x2y=18 
Algebra 2
Solve using linear combinations. x  5y = 6 3x + 4y = 18 What are linear combinations?