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-2x+x=3
-x=3 |*(-1)
x=-3
x + ¼ = ½ + 2x
x-2x=²/₄-¼
-x=¼ |*(-1)
x=-¼
3x + ¹/₇ = x - 1
3x-x=-1-¹/₇
2x=-1¹/₇
2x=-⁸/₇ |:2
x=-⁸/₇*½
x=-⁸/₁₄
x=-⁴/₇
1¾ - 3x = -3¼ - 4x
-3x+4x=-3¼-1¾
x=-5
1)
3 - x = -2x
-x+2x=-3
x=-3
2)
x + ¼ = ½ + 2x / *4
4x+1=2+8x
4x-8x=2-1
-4x=1
x=- 1/4
3)
3x + ¹/₇ = x - 1
3x-x=-1-1/4
2x=3/4
x=3/8
4)
1¾ - 3x = -3¼ - 4x
-3x+4x=-3 1/4-1 3/4
x=-5
3 = -x / :-1
-3= x
x+ 1/4 = 1/2 + 2x / *4
4x + 1 = 2 +2 x / -1
4x = 1 + 2 x / -2 x
2x = 1 / ;2
x = 1/2