Answer:
x = 3
Step-by-step explanation:
7x - 9 + 3x = 2x + 18 - x
10x - 9 = x + 18
10x - x = 18 + 9
9x = 27
(
4
a
+
b
3
)
2
−
Answer 3x3.4
Answer: 4
Step-by-step explanation: 2 + 2 = 4
(-3)²= 3²
(3²)⁴=9⁴
9⁴ is the answer
(edited)