Question

Tìm \(x\), biết :

a) \(x+13=32-76\)

b) \(\left(-15\right)+x=\left(-14\right)-\left(-57\right)\)

Answer 1

a) x + 13 = 32 - 76
=> x + 13 = -44
=> x = (-44) - 13
=> x = -57
b) ( -15) + x = ( -14 ) - ( -57 )
=> (-15) + x = (-14) + 57
=> (-15) + x = 43
=> x = 43 - (-15)
=> x = 43 + 15
=> x = 58

Answer 2

Tìm x

a) x+13=32-76

x+13= -44

x= -44-13

x= -57

b) (-15)+x=(-14)-(-57)

(-15)+x= (-14)+57

(-15)+x= 43

x= 43-(-15)

x=43+15

x=58

Answer 3

a) x + 13 = 32 - 76

x + 13 = 32 + (-76)

x + 13 = -44

x = (-44) + (-13)

x = -57

b) (-15) + x = (-14) - (-57)

(-15) + x = (-14) + 57

(-15) + x = 43

x = 43 + 15

x = 58