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Solve 12x + 12 = 0

The solution of 12x + 12 = 0 is x = -1.

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The lines y = 12x + 12 and y = 0 meet at x = -1-6-4-224-80-60-40-2020406080x = -1y = 12x + 12y = 0
The lines y = 12x + 12 and y = 0 meet at x = -1. The solution of the equation is the x-coordinate of the point where the two sides are equal.

How to work it out

  1. 1

    The goal is to get x alone. Undo the operations in the opposite order: first the addition, then the multiplication.

    12x+12=012x + 12 = 0
  2. 2

    Subtract 12 from both sides:

    12x+12−12=0−12 ⇒ 12x=−1212x + 12 - 12 = 0 - 12 \ \Rightarrow\ 12x = -12
  3. 3

    Divide both sides by 12:

    12x12=−1212 ⇒ x=−1\frac{12x}{12} = \frac{-12}{12} \ \Rightarrow\ x = -1
  4. 4

    Check: put x = -1 back into the equation.

    12⋅(−1)+12=−12+12=0✓12\cdot(-1) + 12 = -12 + 12 = 0 \checkmark
LaTeX source of the formulas on this page
\[ 12x + 12 = 0\ \Rightarrow\ x = -1 \]
\[ 12x + 12 = 0 \]
\[ 12x + 12 - 12 = 0 - 12 \ \Rightarrow\ 12x = -12 \]
\[ \frac{12x}{12} = \frac{-12}{12} \ \Rightarrow\ x = -1 \]
\[ 12\cdot(-1) + 12 = -12 + 12 = 0 \checkmark \]

Trying values of x in 12x + 12 = 0

x12x + 12Equals 0?
-3-24no
-2-12no
-10yes
012no
124no

Questions

What is x in 12x + 12 = 0?

The solution of 12x + 12 = 0 is x = -1.

How do you solve 12x + 12 = 0?

Subtract 12 from both sides to get 12x = -12, then divide both sides by 12 to get x = -1.

How do I check the answer?

Replace x by -1: 12(-1) + 12 = 0, which is 0.

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    Solve 12x + 12 = 0: x = -1 (steps and check) | WordGPT