Rozwiąż równania
a) x+1=16-2x
B) x+5/₄ - 2x+1/₈ = ½(2-x)
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a) x+1=16-2x |+2x
3x+1-16 |-1
3x=15 |:3
x=5
B) x+5/₄ - 2x+1/₈ = ½(2-x) |*8
8x+10-16x +1 =8-4x
-8x +11 = 8-4x |+4x
-4x+11=8 |-11
-4x = -3
x=¾
a) x + 1 =16 - 2x
x + 2x = 16 - 1
3x = 15
x = 5
b)
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a) x+1=16-2x |+2x
3x+1-16 |-1
3x=15 |:3
x=5
B) x+5/₄ - 2x+1/₈ = ½(2-x) |*8
8x+10-16x +1 =8-4x
-8x +11 = 8-4x |+4x
-4x+11=8 |-11
-4x = -3
x=¾
a) x + 1 =16 - 2x
x + 2x = 16 - 1
3x = 15
x = 5
b)
B) x+5/₄ - 2x+1/₈ = ½(2-x) |*8
8x+10-16x +1 =8-4x
-8x +11 = 8-4x |+4x
-4x+11=8 |-11
-4x = -3
x=¾