4x + 3y = 2
7x + 6y = 2
Proszę rozpisać
4x + 3y = 2 |*(-2)
-8x-6y = -4
7x+6y = 2
------------------
-x = -2 |*(-1)
x = 2
7*2+6y = 2
14+6y = 2
6y = 2-14
6y = -12 |:6
y = -2
4x + 3y = 2|:4
x=0,5-0,75y
7(0,5-0,75y)+6y=2
3,5-5,25y+6y=2
0,75y=-1,5
y=-2
x=0,5-0,75*(-2)
x=0,5+1,5
x=2
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4x + 3y = 2 |*(-2)
7x + 6y = 2
-8x-6y = -4
7x+6y = 2
------------------
-x = -2 |*(-1)
x = 2
7x+6y = 2
7*2+6y = 2
14+6y = 2
6y = 2-14
6y = -12 |:6
y = -2
x = 2
4x + 3y = 2|:4
7x + 6y = 2
x=0,5-0,75y
7(0,5-0,75y)+6y=2
3,5-5,25y+6y=2
0,75y=-1,5
y=-2
x=0,5-0,75*(-2)
x=0,5+1,5
x=2