Question

A) 2x+20-(x+3)=30


B) 30+10+15-(10-5)+x=10

Answer 1

Hi,

A) 2x + 20 - ( x + 3 ) = 30

=> 2x + 20 - x - 3 = 30

=> x + 17 = 30

=> x = 30 - 17

=> x = 13

Answer is 13

Besides,

B) 30 + 10 + 15 - ( 10 - 5 ) + x = 10

=> 30 + 10 + 15 - 10 + 5 + x = 10

=> x = 10 - 40

=> x = -40

Answer is - 40