Answer:
Step-by-step explanation:
x²+10=9
x²=9-10
x²=-1=i²
x=±i
Answer:
5
Step-by-step explanation:
-3a+24-9=0
-3a = -15
a = 5
Answer:
3x+72
Step-by-step explanation:
Let's first simplify the equation 3(10x+9)−9(3x−5)
You want to distribute first
=(3)(10x)+(3)(9)+(−9)(3x)+(−9)(−5)
=30x+27+−27x+45
And then combine like terms:
=30x+27+−27x+45
=(30x+−27x)+(27+45)
=3x+72 (answer)
