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Exercise

$8x+3=-21-4x$

Step-by-step Solution

1

Group the terms of the equation by moving the terms that have the variable $x$ to the left side, and those that do not have it to the right side

$8x+4x=-21-3$
2

Subtract the values $-21$ and $-3$

$8x+4x=-24$
3

Combining like terms $8x$ and $4x$

$12x=-24$
4

Divide both sides of the equation by $12$

$x=-2$

Final answer to the exercise

$x=-2$

Try other ways to solve this exercise

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  • Solve for x
  • Find the derivative using the definition
  • Solve by quadratic formula (general formula)
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Main Topic: One-variable linear equations

Algebraic equations that have just one variable.

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