Answer:
4x>74+9
Step-by-step explanation:
4x+2×45
2×45x
74x×2
4x>9
4x>74+9
84 divided into sevenths could either be:
84 x (1/7) or simply 84/7
In the end, the answer would be 12.
Step-by-step explanation:

from difference of two squares:

therefore:

factorise out ¾ :
