21+7(3x+4)=

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Solution for 21+7(3x+4)= equation:


Simplifying
21 + 7(3x + 4) = 0

Reorder the terms:
21 + 7(4 + 3x) = 0
21 + (4 * 7 + 3x * 7) = 0
21 + (28 + 21x) = 0

Combine like terms: 21 + 28 = 49
49 + 21x = 0

Solving
49 + 21x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-49' to each side of the equation.
49 + -49 + 21x = 0 + -49

Combine like terms: 49 + -49 = 0
0 + 21x = 0 + -49
21x = 0 + -49

Combine like terms: 0 + -49 = -49
21x = -49

Divide each side by '21'.
x = -2.333333333

Simplifying
x = -2.333333333

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