Answer:
x = -5
Step-by-step explanation:
Multiply 3 by (6x - 4x) = 18x - 12x
18x - 12x = -30
6x = -30
x = -30 /6
X=-5
275
250÷10=25 250+25=275
C
a) 1/2
b) 6/100
c)1/4
I'll explain how I got these answers later.