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Solve 4x + 12 = 12

The solution of 4x + 12 = 12 is x = 0.

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The lines y = 4x + 12 and y = 12 meet at x = 0-6-4-2246-1010203040x = 0y = 4x + 12y = 12
The lines y = 4x + 12 and y = 12 meet at x = 0. 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.

    4x+12=124x + 12 = 12
  2. 2

    Subtract 12 from both sides:

    4x+12−12=12−12 ⇒ 4x=04x + 12 - 12 = 12 - 12 \ \Rightarrow\ 4x = 0
  3. 3

    Divide both sides by 4:

    4x4=04 ⇒ x=0\frac{4x}{4} = \frac{0}{4} \ \Rightarrow\ x = 0
  4. 4

    Check: put x = 0 back into the equation.

    4⋅0+12=0+12=12✓4\cdot0 + 12 = 0 + 12 = 12 \checkmark
LaTeX source of the formulas on this page
\[ 4x + 12 = 12\ \Rightarrow\ x = 0 \]
\[ 4x + 12 = 12 \]
\[ 4x + 12 - 12 = 12 - 12 \ \Rightarrow\ 4x = 0 \]
\[ \frac{4x}{4} = \frac{0}{4} \ \Rightarrow\ x = 0 \]
\[ 4\cdot0 + 12 = 0 + 12 = 12 \checkmark \]

Trying values of x in 4x + 12 = 12

x4x + 12Equals 12?
-24no
-18no
012yes
116no
220no

Questions

What is x in 4x + 12 = 12?

The solution of 4x + 12 = 12 is x = 0.

How do you solve 4x + 12 = 12?

Subtract 12 from both sides to get 4x = 0, then divide both sides by 4 to get x = 0.

How do I check the answer?

Replace x by 0: 4(0) + 12 = 12, which is 12.

Similar equations

    Solve 4x + 12 = 12: x = 0 (steps and check) | WordGPT