Let's solve your system by substitution. 2 x − 3 y = 1 ; 3 x + 2 y = 6
Step: Solve 2 x − 3 y = 1 for x: 2 x − 3 y = 1 2 x − 3 y + 3 y = 1 + 3 y (Add 3y to both sides) 2 x = 3 y + 1 2 x 2 = 3 y + 1 2 (Divide both sides by 2) x = 3 2 y + 1 2
Step: Substitute 3 2 y + 1 2 for x in 3 x + 2 y = 6 : 3 x + 2 y = 6 3 ( 3 2 y + 1 2 ) + 2 y = 6 13 2 y + 3 2 = 6 (Simplify both sides of the equation) 13 2 y + 3 2 + − 3 2 = 6 + − 3 2 (Add (-3)/2 to both sides) 13 2 y = 9 2 13 2 y 13 2 = 9 2 13 2 (Divide both sides by 13/2) y = 9 13
Step: Substitute 9 13 for y in x = 3 2 y + 1 2 : x = 3 2 y + 1 2 x = 3 2 ( 9 13 ) + 1 2 x = 20 13 (Simplify both sides of the equation)