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Solve 12x + 8 = 32

The solution of 12x + 8 = 32 is x = 2.

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The lines y = 12x + 8 and y = 32 meet at x = 2-4-22468-40-2020406080100x = 2y = 12x + 8y = 32
The lines y = 12x + 8 and y = 32 meet at x = 2. 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+8=3212x + 8 = 32
  2. 2

    Subtract 8 from both sides:

    12x+8−8=32−8 ⇒ 12x=2412x + 8 - 8 = 32 - 8 \ \Rightarrow\ 12x = 24
  3. 3

    Divide both sides by 12:

    12x12=2412 ⇒ x=2\frac{12x}{12} = \frac{24}{12} \ \Rightarrow\ x = 2
  4. 4

    Check: put x = 2 back into the equation.

    12⋅2+8=24+8=32✓12\cdot2 + 8 = 24 + 8 = 32 \checkmark
LaTeX source of the formulas on this page
\[ 12x + 8 = 32\ \Rightarrow\ x = 2 \]
\[ 12x + 8 = 32 \]
\[ 12x + 8 - 8 = 32 - 8 \ \Rightarrow\ 12x = 24 \]
\[ \frac{12x}{12} = \frac{24}{12} \ \Rightarrow\ x = 2 \]
\[ 12\cdot2 + 8 = 24 + 8 = 32 \checkmark \]

Trying values of x in 12x + 8 = 32

x12x + 8Equals 32?
08no
120no
232yes
344no
456no

Questions

What is x in 12x + 8 = 32?

The solution of 12x + 8 = 32 is x = 2.

How do you solve 12x + 8 = 32?

Subtract 8 from both sides to get 12x = 24, then divide both sides by 12 to get x = 2.

How do I check the answer?

Replace x by 2: 12(2) + 8 = 32, which is 32.

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