Odpowiedź :
5x=4-2y
4x+y=3
5x=4-2y
y=3-4x
5x=4-2(3-4x)
y=3-4x
5x=4-6+8x
y=3-4x
5x-8x=-2
y=3-4x
-3x=-2
y=3-4x
x=3/2
y=3-4*(3/2)
x=3/2
y=3-6
x=3/2
y=-3
4x+y=3
5x=4-2y
y=3-4x
5x=4-2(3-4x)
y=3-4x
5x=4-6+8x
y=3-4x
5x-8x=-2
y=3-4x
-3x=-2
y=3-4x
x=3/2
y=3-4*(3/2)
x=3/2
y=3-6
x=3/2
y=-3
y=3-4y
5x=4-2(3-4x)
5x=4-6+8x/-8x
-3x=-2/÷(-3)
x=⅔
y=3-4x
y=3-4(⅔)
y=3-8/3
y=⅓
5x=4-2(3-4x)
5x=4-6+8x/-8x
-3x=-2/÷(-3)
x=⅔
y=3-4x
y=3-4(⅔)
y=3-8/3
y=⅓