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Solve 8x + 3 = 27

The solution of 8x + 3 = 27 is x = 3.

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The lines y = 8x + 3 and y = 27 meet at x = 3-22468-2020406080x = 3y = 8x + 3y = 27
The lines y = 8x + 3 and y = 27 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+3=278x + 3 = 27
  2. 2

    Subtract 3 from both sides:

    8x+3−3=27−3 ⇒ 8x=248x + 3 - 3 = 27 - 3 \ \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+3=24+3=27✓8\cdot3 + 3 = 24 + 3 = 27 \checkmark
LaTeX source of the formulas on this page
\[ 8x + 3 = 27\ \Rightarrow\ x = 3 \]
\[ 8x + 3 = 27 \]
\[ 8x + 3 - 3 = 27 - 3 \ \Rightarrow\ 8x = 24 \]
\[ \frac{8x}{8} = \frac{24}{8} \ \Rightarrow\ x = 3 \]
\[ 8\cdot3 + 3 = 24 + 3 = 27 \checkmark \]

Trying values of x in 8x + 3 = 27

x8x + 3Equals 27?
111no
219no
327yes
435no
543no

Questions

What is x in 8x + 3 = 27?

The solution of 8x + 3 = 27 is x = 3.

How do you solve 8x + 3 = 27?

Subtract 3 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) + 3 = 27, which is 27.

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    Solve 8x + 3 = 27: x = 3 (steps and check) | WordGPT