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Solve 4x + 1 = 13

The solution of 4x + 1 = 13 is x = 3.

The lines y = 4x + 1 and y = 13 meet at x = 3-22468-1010203040x = 3y = 4x + 1y = 13
The lines y = 4x + 1 and y = 13 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.

    4x+1=134x + 1 = 13
  2. 2

    Subtract 1 from both sides:

    4x+1−1=13−1 ⇒ 4x=124x + 1 - 1 = 13 - 1 \ \Rightarrow\ 4x = 12
  3. 3

    Divide both sides by 4:

    4x4=124 ⇒ x=3\frac{4x}{4} = \frac{12}{4} \ \Rightarrow\ x = 3
  4. 4

    Check: put x = 3 back into the equation.

    4⋅3+1=12+1=13✓4\cdot3 + 1 = 12 + 1 = 13 \checkmark
LaTeX source of the formulas on this page
\[ 4x + 1 = 13\ \Rightarrow\ x = 3 \]
\[ 4x + 1 = 13 \]
\[ 4x + 1 - 1 = 13 - 1 \ \Rightarrow\ 4x = 12 \]
\[ \frac{4x}{4} = \frac{12}{4} \ \Rightarrow\ x = 3 \]
\[ 4\cdot3 + 1 = 12 + 1 = 13 \checkmark \]

Trying values of x in 4x + 1 = 13

x4x + 1Equals 13?
15no
29no
313yes
417no
521no

Questions

What is x in 4x + 1 = 13?

The solution of 4x + 1 = 13 is x = 3.

How do you solve 4x + 1 = 13?

Subtract 1 from both sides to get 4x = 12, then divide both sides by 4 to get x = 3.

How do I check the answer?

Replace x by 3: 4(3) + 1 = 13, which is 13.

Similar equations

    Solve 4x + 1 = 13: x = 3 (steps and check) | WordGPT