Question

Rozwiąż równiania
1) 64 + 2 x = 46 + x
2)3-x = - 2x
3) 4+3x = 2+2x
4) x + 1/4 = 1/2 + 2x
5) 3x + 1/7 = x - 1
6) 1 cała i 3 /4 - 3x = - 3 całe i 1/4 - 4x
t/10 = 7

Answer 1

1) 64 + 2 x = 46 + x
2x - x = 46 - 64
x = -18

2)3-x = - 2x
-x + 2x = -3
x = -3

3) 4+3x = 2+2x
3x - 2x = 2 - 4
x = -2

4) x + 1/4 = 1/2 + 2x
x - 2x = 1/2 - 1/4
-x = 2/4 - 1/4
-x = 1/4 /:(-1)
x = -1/4

5) 3x + 1/7 = x - 1
3x - x = -1 - 1/7
2x = -7/7 - 1/7
2x = -8/7 /: 2
x = (-8/7) * (1/2)
x = - 8/14

6) 1 cała i 3 /4 - 3x = - 3 całe i 1/4 - 4x
-3x + 4x = -3 i 1/4 - 1 i 3/4
x = -13/4 - 7/4
x = -20/4
x = -5

t/10 = 7 /*10
t = 7 * 10
t = 70

Answer 2

64 + 2 x = 46 + x
2x-x=46-64
x=-18

3-x = - 2x
-x+2x=3
x=3

4+3x = 2+2x
3x-2x=2-4
x=-2

x + 1/4 = 1/2 + 2x
x-2x=1/2 -1/4
-x =-1/4|*(-1)
x=1/4

3x + 1/7 = x - 1
3x-x= -1-1/7
2x=-1¹/₇|:2
x=-4/7

1 ¾ - 3x = - 3 ¼ - 4x
-3x + 4x=-3 ¼ - 1 ¾
x= - 5

t/10 = 7
0,1t=7|*10
t=70

Answer 3

1) 2x-x=46-64
x=18

2)2x-x=-3
x=-3

3)3x-2x=2-4
x=-2

4)x-2x=1/2-1/4
-x=2 /(*-1)
x=-2

5)2x=-8/7 /(/2)
x=-4/7

6)7/4 - 3x = 13/4 - 4x
x=13/4 - 7/4
x=6/4
x=1 cała i 1/2