1)
2x+4/2+y-1/3=4
2)
3(x+2)-2(y-2)=-3x+12
(2x +4):2 + (y -1): 3 = 4 ( przypuszczam że tam ma być z nawiasami)!!
x +2 + (y -1):3 = 4 /*3
3x +6 + y -1 =12
3x +y = 12 -1
3x +y = 11
3x +6 -2y +4 = -3x +12
3x -2y +10 = -3x +12
3x -2y +3x = 12 -10
6x -2y = 2 /:2
3x -y = 1
y = 11 -3x
3x - (11-3x) =1
3x -11 +3x = 1
6x = 1 +11
6x = 12 /:6
x = 2
y = 11 -3*2 = 11 -5 =5
x =2
y = 5
1) 2x+4/2+y-1/3=4
2x + 2 + y -⅓ = 4
2x + y = 4-2-⅓
2x + y = 1⅔
2) 3(x+2)-2(y-2)=-3x+12
3x + 6x + 6 - 2y - 4y²= -3x+12
9x-2y-4y²= -3x+6
12x-2y-4y²=6
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1)
2x+4/2+y-1/3=4
(2x +4):2 + (y -1): 3 = 4 ( przypuszczam że tam ma być z nawiasami)!!
x +2 + (y -1):3 = 4 /*3
3x +6 + y -1 =12
3x +y = 12 -1
3x +y = 11
2)
3(x+2)-2(y-2)=-3x+12
3x +6 -2y +4 = -3x +12
3x -2y +10 = -3x +12
3x -2y +3x = 12 -10
6x -2y = 2 /:2
3x -y = 1
3x +y = 11
3x -y = 1
y = 11 -3x
3x - (11-3x) =1
y = 11 -3x
3x -11 +3x = 1
y = 11 -3x
6x = 1 +11
y = 11 -3x
6x = 12 /:6
y = 11 -3x
x = 2
y = 11 -3*2 = 11 -5 =5
x =2
x =2
y = 5
1) 2x+4/2+y-1/3=4
2x + 2 + y -⅓ = 4
2x + y = 4-2-⅓
2x + y = 1⅔
2) 3(x+2)-2(y-2)=-3x+12
3x + 6x + 6 - 2y - 4y²= -3x+12
9x-2y-4y²= -3x+6
12x-2y-4y²=6