Question

Oblicz rownania. x+3+4x+7+5x-1=10
4x-3+7-x=15
2(x+1)+3=11
7(2x-2)+4x-1=10
5(3x-2)+4(2x+3)=1
1/2(4x-6)+2=4
1/3(3x+6)+1/8(8x+16)=10

Answer 1

1.  x+3+4x+7+5x-1=1010x+9=10 /-9 
10x=1 /:10 
x= 0,1
2.   4x-3+7-x=153x+4=15 /-43x=11 /:3 
x= 3 2/3

3.    2(x+1)+3=11
2x+1+3=11 
2x+4=11  /-4
2x=8   /:2
x=4

5.    7(2x-2)+4x-1=10
14x-14+4x-1=10 
18x-15=10 /+15 
18x=25 /:18 
x= 25/18 

6.    5(3x-2)+4(2x+3)=1
15x-10+8x+12=1
23x+2=1 /-2 
23x= -1 /:23 
x= - 1/23 

7.    1/2(4x-6)+2=4
2x-3+2=4 
2x-1=4 /+1
2x=5 /:2 
x=2,5

8.    1/3(3x+6)+1/8(8x+16)=10
0,9x+1,8+6,4x+12,8=10 
7,3x+14,6=10 /-14,6
7,3x=-4,6 /:7,3 
x= - 4,6/7,3

Answer 2

1.  x+3+4x+7+5x-1=10
10x+9=10 /-9 
10x=1 /:10 
x= 0,1

2.   4x-3+7-x=15
3x+4=15 /-43
x=11 /:3 
x= 3 2/3

3.    2(x+1)+3=11
2x + 2 + 3 = 11
2x + 5 = 11
2x = 6
x = 3

5.    7(2x-2)+4x-1=10
14x-14+4x-1=10 
18x-15=10 /+15 
18x=25 /:18 
x= 25/18 

6.    5(3x-2)+4(2x+3)=1
15x-10+8x+12=1
23x+2=1 /-2 
23x= -1 /:23 
x= - 1/23 

7.    1/2(4x-6)+2=4
2x-3+2=4 
2x-1=4 /+1
2x=5 /:2 
x=2,5

8.    1/3(3x+6)+1/8(8x+16)=10
x + 2 + x + 2 = 10
2x + 4 = 10
2x = 6
x = 3

Answer 3

4x-3+7-x=15
3x + 4 = 15
3x = 11
x = ¹¹/₃

2(x+1)+3=11
2x + 2 + 3 = 11
2x + 5 = 11
2x = 6
x = 3

7(2x-2)+4x-1=10
14x - 14 + 4x - 1 = 10
18x - 15 = 10
18x = 25
x = ²⁵/₁₈

5(3x-2)+4(2x+3)=1
15x - 10 + 8x +12 = 1
23x +2 = 1
23x = -1
x = - ¹/₂₃

1/2(4x-6)+2=4
2x - 3 + 2 = 4
2x - 1 = 4
2x = 5
x = 2,5 

1/3(3x+6)+1/8(8x+16)=10
x + 2 + x + 2 = 10
2x + 4 = 10
2x = 6
x = 3