Question

Carilah nilai x dr :
a. - (-x) - (-5) = -5 - (-8)
b. x + (-15) + (-5) = 30
c. 5 + (-x) -5 = 17
d. 4 - (-x) - (-7) = -5 - 7
bantuin dong, cuuss bsok di kumpulin. itu huruf x bukan kali

Answer 1

a. - (-x) - (-5) = -5 - (-8)
x+5 = -5+8
x+5 = -5+8
x+5=3
x= 3-5
x= -2
b. x + (-15) + (-5) = 30
x-15-5=30
x-20=30
x=30-20
x=10
c. 5 + (-x) -5 = 17
5-x-5=17
-x-5=17-5
-x-5=12
-x=12+5
-x=17
x=-17
d. 4 - (-x) - (-7) = -5 - 7
4+x+7=-5-7
x+7=-5-7-4
x+7=-16
x=-16-7
x=-23

semoga membantu