3x = 2(21 + 5x)
To solve the equation 3x = 2(21 + 5x), we need to simplify and isolate the variable x
To solve the equation 3x = 2(21 + 5x), we need to simplify and isolate the variable x.
First, distribute the 2 to the terms inside the parentheses:
3x = 42 + 10x
Rearrange the equation to have all x terms on one side and constant terms on the other side:
3x – 10x = 42
Combine like terms:
-7x = 42
To isolate x, divide both sides of the equation by -7:
-7x / -7 = 42 / -7
Simplifying:
x = -6
So, the solution to the equation 3x = 2(21 + 5x) is x = -6.
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