Step-by-step explanation:
Simplify the left side:
5x - 20 = 3x + 4
Move all terms containing x to the left side of the equation:
2x - 20 = 4
Move all terms not containing x to the right side of the equation:
2x = 24
Divide each term by 2 and simplify:
x = 12
Answer:
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Answer:
Proportional
Step-by-step explanation:
Answer:

Step-by-step explanation:
(X^2+y^2)^2 polynomial identify. Simplify
i.e

Solution:
We have the identity,

In the Question


Substituting in the identity we get

Also we have

Which is the required
The answer is 1561 yuans and 27 jiao.