Question

tìm x:

a.(x+1997)+2003=5432

b.329-(129+x)=14*7

dau* la dau nhan

Answer 1

a) (x+1997) + 2003 = 5432

x+ 1997 = 5432 - 2003

x + 1997 = 3429

x = 3429 - 1997

x= 1432

b) 329 - (129 +x) = 14*7

329 - (129 + x) = 98

129 + x= 329 -98

129 + x = 231

x = 231 - 129

x = 102

Answer 2

a. (x+1997) + 2003= 5432 

=> x = 5432 -( 2003 + 1997)

=> x = 5432 - 4000

=> x = 1432

b. 329 - (129 + x ) = 14*7

=> 129+ x = 329 - 98

=> 129 + x = 231

=> x = 231 - 129

=> x = 102

Answer 3

a.(x+1997)+2003=5432

x + 1997 = 5432 - 2003

x + 1997 = 3429

x = 3429 - 1997

x = 1432

b) 329 - ( 129 + x ) = 14 * 7

329 - ( 129 + x ) = 98

129 + x = 329 - 98

129 + x = 231

x = 231 - 129

x = 102