Question

1) -16 = -4(5+b)
2) (11,4-19,4)х = 1,5 (-8)

Answer 1

1) -16＝-20-b
b＝-4
2) 11.4x-19.4x＝-12
-8x＝-12
X＝1.5

Answer 2

1) -16=-4(5+b)
-16= -20 -4b
-16+20= -4b
4= -4b
b= -1

2) (11,4-19,4)x=1,5(-8)
11,4x-19,4x=20
-8x=12
x= -1,5