2.5*8.4*(x+3)=

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Solution for 2.5*8.4*(x+3)= equation:


Simplifying
2.5 * 8.4(x + 3) = 0

Reorder the terms:
2.5 * 8.4(3 + x) = 0

Multiply 2.5 * 8.4
21(3 + x) = 0
(3 * 21 + x * 21) = 0
(63 + 21x) = 0

Solving
63 + 21x = 0

Solving for variable 'x'.

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

Add '-63' to each side of the equation.
63 + -63 + 21x = 0 + -63

Combine like terms: 63 + -63 = 0
0 + 21x = 0 + -63
21x = 0 + -63

Combine like terms: 0 + -63 = -63
21x = -63

Divide each side by '21'.
x = -3

Simplifying
x = -3

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