Jak rozwiązać równanie metodą podstawiania ?
3x+2y=1
-6x-4x=-4
Z góry dzięki za pomoc ;-)
-10x=-4/ (-10)
x= 2/5
3*2/5+2y=1
x=2/5
6/5+2y=1
2y=1-6/5
2y=-1/5 \ :2
y=-1/5 *1/2
y=-1/10
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3x+2y=1
-6x-4x=-4
3x+2y=1
-10x=-4/ (-10)
3x+2y=1
x= 2/5
3*2/5+2y=1
x=2/5
6/5+2y=1
2y=1-6/5
2y=-1/5 \ :2
y=-1/5 *1/2
y=-1/10
x=2/5
y=-1/10