You can infer from this problem that the shape of the wooden
plank is a rectangle based on the dimensions given. The length of a rectangle
is usually the longest side of the rectangle so you can conclude that the
length of the rectangle is 12.5 cm. Therefore, the width is 8.5 cm.
7c + 12 = -4c + 78
+4c. +4c
11c + 12 = 78
-12. -12
11c = 66
11/11. 66/11
C = 6
Plug in the answer to check .
7 * 6 + 12 = 54
-4 * 6 + 78 = 54
54 = 54
Answer:
2,750.00
Step-by-step explanation:
I think hope this helps
Combine Like Terms
4.8 & 2.4 are common terms.
2.2x & -1.4x are common terms.
4.8 + 2.4 = 7.2
2.2x - 1.4x = 0.8x
The answer is 7.2 + 0.8x or 0.8x + 7.2