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Solve 3x + 6 = 36

The solution of 3x + 6 = 36 is x = 10.

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The lines y = 3x + 6 and y = 36 meet at x = 1046810121416152025303540455055x = 10y = 3x + 6y = 36
The lines y = 3x + 6 and y = 36 meet at x = 10. 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.

    3x+6=363x + 6 = 36
  2. 2

    Subtract 6 from both sides:

    3x+6−6=36−6 ⇒ 3x=303x + 6 - 6 = 36 - 6 \ \Rightarrow\ 3x = 30
  3. 3

    Divide both sides by 3:

    3x3=303 ⇒ x=10\frac{3x}{3} = \frac{30}{3} \ \Rightarrow\ x = 10
  4. 4

    Check: put x = 10 back into the equation.

    3⋅10+6=30+6=36✓3\cdot10 + 6 = 30 + 6 = 36 \checkmark
LaTeX source of the formulas on this page
\[ 3x + 6 = 36\ \Rightarrow\ x = 10 \]
\[ 3x + 6 = 36 \]
\[ 3x + 6 - 6 = 36 - 6 \ \Rightarrow\ 3x = 30 \]
\[ \frac{3x}{3} = \frac{30}{3} \ \Rightarrow\ x = 10 \]
\[ 3\cdot10 + 6 = 30 + 6 = 36 \checkmark \]

Trying values of x in 3x + 6 = 36

x3x + 6Equals 36?
830no
933no
1036yes
1139no
1242no

Questions

What is x in 3x + 6 = 36?

The solution of 3x + 6 = 36 is x = 10.

How do you solve 3x + 6 = 36?

Subtract 6 from both sides to get 3x = 30, then divide both sides by 3 to get x = 10.

How do I check the answer?

Replace x by 10: 3(10) + 6 = 36, which is 36.

Similar equations

    Solve 3x + 6 = 36: x = 10 (steps and check) | WordGPT