Question

Prosze rozwiążcie tak aby były obliczenia.
3(x+7)-4=x+5
4(x+5)+7=x+3
5(x+8)+17=x+4
7(x-4_-18=x-7
14(x+2)-12=x-7
16(x-1)+14=x+17
1(x+2)+50=x-25
3x+2x+2x-7x+70=2x-x+4
3x-2x+7x-9x+7-17+9=20x+x-4
3x-4x+5x-9x+17x-14x+9-10-17
15x+14x+x-30+70+14+17-100-10x+17
4(x-7)=3*(x+2)-7
7(3-4)+2=3*(x+7)-7
8(3-5)+12=3(x+7)-17
9(3-4)+14=3(x-7-5+4)-18+19

Answer 1

3(x+7)-4=x+5
3x+21-4=x+5
3x+17=x+5/-5
3x+12=x/-3x
12=-2x/:-2
x=-6

4(x+5)+7=x+3
4x+20+7=x+3
4x+27=x+3/-3
4x+24=x/-4x
24=-3x/:-3
x=-8

5(x+8)+17=x+4
5x+40+17=x+4/-4
5x+53=x/-5x
53=-4x/:-4
x=-13,25

7(x-4)-18=x-7
7x-28-18=x-7/-7x
-46=-6x-7/+7
-39=-6x/:-6
x=6,5

14(x+2)-12=x-7
14x+28-12=x-7/-14x
16=-13x-7/+7
23=-13x/:-13
x≈-1,77

16(x-1)+14=x+17
16x-16+14=x+17
16x-2=x+17/+2
16x=x+19/-x
15x=19
x≈0,27

1(x+2)+50=x-25
x+2+50=x-25/-x
52≠-25

3x+2x+2x-7x+70=2x-x+4
70=x+4/-4
x=66

3x-2x+7x-9x+7-17+9=20x+x-4
-x-1=21x-4/+4
-x+3=21x/+x
3=22x/:22
x=3:22

3x-4x+5x-9x+17x-14x+9-10-17=-2x-18

15x+14x+x-30+70+14+17-100-10x+17=20x-12

4(x-7)=3*(x+2)-7
4x-28=3x+6-7
4x-28=3x-1?+1
4x-27=3x/-4x
-27=-x/*-1
x=27

7(3-4)+2=3*(x+7)-7
21-28+2=3x+21-7
-7+2=3x+14/-14
3x=-19/:3
x=-(19:3)

8(3-5)+12=3(x+7)-17
-16+12=3x+12-17
-4=3x-5/+5
3x=1/:3
x=(1:3)

9(3-4)+14=3(x-7-5+4)-18+19
-9+14=3x-24-18+19
5=3x-23/+23
3x=28/:3
x=(28:3)