Use the distributive property.
9/10 (x + 8) = 18
9/10x + 7.2 = 18
9/10x + 7.2 - 7.2 = 18 - 7.2
9/10x = 10.8
9/10x / 9/10 = 10.8 / 9/10
x = 12
Answer:
b. x less-than StartFraction 10 Over 3 End fraction
Answer:
x= -6
Step-by-step explanation:
(-16) = 2x +4
-12 = 2x
x= -6
Answer:
x 
4
Step-by-step explanation:
4x^2 - 64 0 ; move 64 over
4x^2 64 ; divide by 4
x^2 16 ; take square root of both sides
x 4
