Question 298800
Solve by elimination
5x-y=13  ---- 1
x+2y=1   ---- 2
You need to decide the variable you want to eliminate. i will eliminate the variable y
Multiple Equation 1 by 2
10x - 2y = 26 - -- 1
x   + 2y = 1 ----   2
Eqn. 1 + Eqn 2
11x = 27
11x/11 = 27/11
Therefore, x = 27/11
Put x = 27/11 into Eqn. 1
5x-y=13 
5(27/11) - y = 13
y = 137/11 - 13
y = (137 - 143)/11
y= -6/11