Question

solve the following equation and cheak the result.
(i). 10x+10=100
(ii). 2x+3=13
(iii). 2x=-8
(iv). x+(x+2)=(x+4)+31​

Answer 1

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Answer:

Step-by-step explanation:

1) 10x+10=100 =)10x=100-10 =)10x=90 =)x=90/10 =)x=9

2) 2x+3=13 =)2x=13-3 =)2x=10 =)x=10/2 =)x=5

3) 2x=-8 =)x=-8/2 =)x=-4

4) x+(x+2)=(x+4)+31 =)2x+2=x+35 =)2x-x=35-2 =)x=33

Answer 2

Answer:

1. x = 9
2. x = 5
3. x = (-4)
4. x = 17

Step-by-step explanation:

(i) 10x+10=100

10x=100-10

10x=90

x=9

(ii)2x+3=13

2x=13-3

2x=10

x=5

(iii) 2x=-8

x= -8/2

x= -4

(iv)x+(x+2)= (x+4)+31

2x+x+2=x+31+35

3x+2=x+36

3x=x+36-2

3x=x+34

3x-x=34

2x=34

x=17

Hope it helps :)