Question

please send all answer line by line​

Answer 1

It's not possible to give all answers of your questions...still some of them has been given below.

• 1)..2x+3 = 7
• 2x = 7-3
• x = 4/2
• x = 2

• 2). 7x-4 = 10
• 7x= 10+4
• x = 14/7
• x = 2

in this way u can find all the values of x.

Now , 2nd sum

given:

• sum of two numbers = 67
• their difference = 15

let the two numbers be x and y

• x + y = 67...(1)
• x - y = 15(2)

Add 1 from 2

• 2x = 82
• x = 82/2
• x = 41

now to find the value of y put x in 2nd equation,

• 41 + y =67
• y = 67-41
• y = 26

hence the two numbers are 41 and 26