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Solve 8x + 5 = 13

The solution of 8x + 5 = 13 is x = 1.

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The lines y = 8x + 5 and y = 13 meet at x = 1-4-2246-40-20204060x = 1y = 8x + 5y = 13
The lines y = 8x + 5 and y = 13 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.

    8x+5=138x + 5 = 13
  2. 2

    Subtract 5 from both sides:

    8x+5−5=13−5 ⇒ 8x=88x + 5 - 5 = 13 - 5 \ \Rightarrow\ 8x = 8
  3. 3

    Divide both sides by 8:

    8x8=88 ⇒ x=1\frac{8x}{8} = \frac{8}{8} \ \Rightarrow\ x = 1
  4. 4

    Check: put x = 1 back into the equation.

    8⋅1+5=8+5=13✓8\cdot1 + 5 = 8 + 5 = 13 \checkmark
LaTeX source of the formulas on this page
\[ 8x + 5 = 13\ \Rightarrow\ x = 1 \]
\[ 8x + 5 = 13 \]
\[ 8x + 5 - 5 = 13 - 5 \ \Rightarrow\ 8x = 8 \]
\[ \frac{8x}{8} = \frac{8}{8} \ \Rightarrow\ x = 1 \]
\[ 8\cdot1 + 5 = 8 + 5 = 13 \checkmark \]

Trying values of x in 8x + 5 = 13

x8x + 5Equals 13?
-1-3no
05no
113yes
221no
329no

Questions

What is x in 8x + 5 = 13?

The solution of 8x + 5 = 13 is x = 1.

How do you solve 8x + 5 = 13?

Subtract 5 from both sides to get 8x = 8, then divide both sides by 8 to get x = 1.

How do I check the answer?

Replace x by 1: 8(1) + 5 = 13, which is 13.

Similar equations

    Solve 8x + 5 = 13: x = 1 (steps and check) | WordGPT