Paano mo malutas ang x + y = 5 at 3x-y = 3?

Sagot:

# y = 3 #

# x = 2 #

Paliwanag:

# x + y = 5 #

# 3x-y = 3 #

# y = 5-x #

# 3x- (5-x) = 3 #

# y = 5-x #

# 3x-5 + x = 3 #

# y = 5-x #

# 4x = 8 #

# y = 3 #

# x = 2 #