-3x + 7x = -12
You need to add like terms.
4x = -12
Then, you need to divide both side by 4.
x = -3
So the answer is:
A) x = -3
Answer:
9
Step-by-step explanation:
1) Using n√a^m = (n√a)^m, rewrite the root like (3√27)^2
2) Write the number in exponential form with a base of 3: (3√3^3)^2
3) Calculate the cube root: 3^2
4) Evaluate the power: 3^2=9