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Solve 4x + 15 = 67

The solution of 4x + 15 = 67 is x = 13.

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The lines y = 4x + 15 and y = 67 meet at x = 1381012141618405060708090x = 13y = 4x + 15y = 67
The lines y = 4x + 15 and y = 67 meet at x = 13. 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+15=674x + 15 = 67
  2. 2

    Subtract 15 from both sides:

    4x+15−15=67−15 ⇒ 4x=524x + 15 - 15 = 67 - 15 \ \Rightarrow\ 4x = 52
  3. 3

    Divide both sides by 4:

    4x4=524 ⇒ x=13\frac{4x}{4} = \frac{52}{4} \ \Rightarrow\ x = 13
  4. 4

    Check: put x = 13 back into the equation.

    4⋅13+15=52+15=67✓4\cdot13 + 15 = 52 + 15 = 67 \checkmark
LaTeX source of the formulas on this page
\[ 4x + 15 = 67\ \Rightarrow\ x = 13 \]
\[ 4x + 15 = 67 \]
\[ 4x + 15 - 15 = 67 - 15 \ \Rightarrow\ 4x = 52 \]
\[ \frac{4x}{4} = \frac{52}{4} \ \Rightarrow\ x = 13 \]
\[ 4\cdot13 + 15 = 52 + 15 = 67 \checkmark \]

Trying values of x in 4x + 15 = 67

x4x + 15Equals 67?
1159no
1263no
1367yes
1471no
1575no

Questions

What is x in 4x + 15 = 67?

The solution of 4x + 15 = 67 is x = 13.

How do you solve 4x + 15 = 67?

Subtract 15 from both sides to get 4x = 52, then divide both sides by 4 to get x = 13.

How do I check the answer?

Replace x by 13: 4(13) + 15 = 67, which is 67.

Similar equations

    Solve 4x + 15 = 67: x = 13 (steps and check) | WordGPT