Probably because people gave you the wrong answer. Not saying they did this intentionally....
21(3n+7)=?
(63n+147)=? After multiplying
63/147=2.33333. After dividing 147/63 plz let me know if I’m wrong.
Answer: 21(3n+7)=2.33333
Answer:
x = 7
Step-by-step explanation:
A rhombus is a parallelogram where all sides are equal. Therefore, as we know two sides are equal to 7x+8 and 9x-6, we can say that
7x+8 = 9x - 6
subtract 7x from both sides to put the variable on one side
2x - 6 = 8
add 6 to both sides to isolate the variable and its coefficient
2x = 14
divide both sides by 2 to isolate x
x = 7
Answer:
14x. ....................
