The solution of the equation 9+4x=21-2x is 2x=2.
What is equation?
An equation is a mathematical statement that proves two mathematical expressions are equal in algebra, and this is how it is most commonly used. Consider the equation 3x + 5 = 14, where 3x + 5 and 14 are two expressions that are separated by the symbol "equal." A mathematical expression using the equals sign is referred to as an equation. Algebra is frequently used in equations. In math, algebra is employed when you don't know the precise amount to calculate.
Here the given equation is ,
=> 9 + 4x = 21 - 2x
=> 4x+2x = 21-9
=> 6x = 12
=> x= 12/6
=> x= 2.
Therefore the solution of equation is x=2.
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