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Solve 8x + 9 = 33

The solution of 8x + 9 = 33 is x = 3.

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The lines y = 8x + 9 and y = 33 meet at x = 3-22468-2020406080x = 3y = 8x + 9y = 33
The lines y = 8x + 9 and y = 33 meet at x = 3. 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.

    8x+9=338x + 9 = 33
  2. 2

    Subtract 9 from both sides:

    8x+9−9=33−9 ⇒ 8x=248x + 9 - 9 = 33 - 9 \ \Rightarrow\ 8x = 24
  3. 3

    Divide both sides by 8:

    8x8=248 ⇒ x=3\frac{8x}{8} = \frac{24}{8} \ \Rightarrow\ x = 3
  4. 4

    Check: put x = 3 back into the equation.

    8⋅3+9=24+9=33✓8\cdot3 + 9 = 24 + 9 = 33 \checkmark
LaTeX source of the formulas on this page
\[ 8x + 9 = 33\ \Rightarrow\ x = 3 \]
\[ 8x + 9 = 33 \]
\[ 8x + 9 - 9 = 33 - 9 \ \Rightarrow\ 8x = 24 \]
\[ \frac{8x}{8} = \frac{24}{8} \ \Rightarrow\ x = 3 \]
\[ 8\cdot3 + 9 = 24 + 9 = 33 \checkmark \]

Trying values of x in 8x + 9 = 33

x8x + 9Equals 33?
117no
225no
333yes
441no
549no

Questions

What is x in 8x + 9 = 33?

The solution of 8x + 9 = 33 is x = 3.

How do you solve 8x + 9 = 33?

Subtract 9 from both sides to get 8x = 24, then divide both sides by 8 to get x = 3.

How do I check the answer?

Replace x by 3: 8(3) + 9 = 33, which is 33.

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    Solve 8x + 9 = 33: x = 3 (steps and check) | WordGPT