Question

solve this question plz help me ​Class 7th​

Answer 1

1. 10p +10 = 100

subtracting both sides by 10

10p+10 - 10 = 100- 10

10p = 90

Dividing both sides by 10

10 /10 = 90/10

p=9

2. 3s +12=0

Subtracting both sides by 12

3s +12-12=0-12

3s = -12

Dividing both sides by 3

3s / 3= -12/3

S = - 4

any two

I have done

It will be helpful to you

Answer 2

$10p + 10 = 100 \\ 10p = 100 - 10 \\ 10p = 90 \\ p = \frac{90}{10} \\ p = 9$

$3s + 12 = 0 \\ 3s = - 12 \\ s = \frac{ - 12}{3} \\ s = ( - 4)$