A) 5x + 7 =14x+2
B)-2x - 6= -6x +4
C) 2(3x-3) +2=5(4x+7) +2x
a) 5x + 7 =14x+2
5x-14x=2-7
-9x=-5 /:(-9)
x=5/9
b)-2x - 6= -6x +4
-2x+6x=6+4
4x=10 /:4
x=2 ½
c) 2(3x-3) +2=5(4x+7) +2x
6x-6+2=20x+35+2x
6x-20x-2x=35+6-2
-16x=39 /:(-16)
x = -2(i)5/16
A)
5x + 7 =14x+2
5x - 14x = 2 -7
-9x = -5
x = 5/9
B)
-2x - 6= -6x +4
-2x + 6x = 4 + 6
4x = 10
x = 10/4 = 5/2 = 2 i 1/2
C)
2(3x-3) +2=5(4x+7) +2x
6x - 6 + 2 = 20x + 35 + 2x
6x - 20x - 2x = 35 + 6 - 2
-16x = 39 / : (-16)
x = - 39/16 = - 2 i 7/16
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a) 5x + 7 =14x+2
5x-14x=2-7
-9x=-5 /:(-9)
x=5/9
b)-2x - 6= -6x +4
-2x+6x=6+4
4x=10 /:4
x=2 ½
c) 2(3x-3) +2=5(4x+7) +2x
6x-6+2=20x+35+2x
6x-20x-2x=35+6-2
-16x=39 /:(-16)
x = -2(i)5/16
A)
5x + 7 =14x+2
5x - 14x = 2 -7
-9x = -5
x = 5/9
B)
-2x - 6= -6x +4
-2x + 6x = 4 + 6
4x = 10
x = 10/4 = 5/2 = 2 i 1/2
C)
2(3x-3) +2=5(4x+7) +2x
6x - 6 + 2 = 20x + 35 + 2x
6x - 20x - 2x = 35 + 6 - 2
-16x = 39 / : (-16)
x = - 39/16 = - 2 i 7/16