Algebra I Exercises: Solving Linear Systems Algebraically - Substitution
By B Horn
a) x + y = 9
b) x + y = 3
a) 2y - 3x = 12
b) 2y - x = 8
a) y - x = -4
b) y + x = -4
a) y - 4x = 8
b) x + 2 = 0
a) 6y - 6x = 12
b) 4x - 4y = -8
a) y - 2x = 3
b) 2y - x = 12
a) 3y - 12x = 15
b) 2y - 2x = 4
a) y + x = -3
b) 3y - 2x = 21