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5x + 3y = 45
5x + 3(0) = 45
5x = 45
x = 45/5
x = 9
titik potong pada sumbu x adalah (9,0)
titik potong pada sumbu y, berarti x = 0
5x + 3y = 45
5(0) + 3y = 45
3y = 45
y = 45/3
y = 15
titik potong pada sumbu y adalah (0,15)
5x (3y:3)=45:3
5x +y=15
(5x :5)+ y=15:5
x + y=3