WordGPT

Solve 2x + 10 = 40

The solution of 2x + 10 = 40 is x = 15.

Explain it step by step in chatMake a short video of it
The lines y = 2x + 10 and y = 40 meet at x = 151012141618203035404550x = 15y = 2x + 10y = 40
The lines y = 2x + 10 and y = 40 meet at x = 15. 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.

    2x+10=402x + 10 = 40
  2. 2

    Subtract 10 from both sides:

    2x+10−10=40−10 ⇒ 2x=302x + 10 - 10 = 40 - 10 \ \Rightarrow\ 2x = 30
  3. 3

    Divide both sides by 2:

    2x2=302 ⇒ x=15\frac{2x}{2} = \frac{30}{2} \ \Rightarrow\ x = 15
  4. 4

    Check: put x = 15 back into the equation.

    2⋅15+10=30+10=40✓2\cdot15 + 10 = 30 + 10 = 40 \checkmark
LaTeX source of the formulas on this page
\[ 2x + 10 = 40\ \Rightarrow\ x = 15 \]
\[ 2x + 10 = 40 \]
\[ 2x + 10 - 10 = 40 - 10 \ \Rightarrow\ 2x = 30 \]
\[ \frac{2x}{2} = \frac{30}{2} \ \Rightarrow\ x = 15 \]
\[ 2\cdot15 + 10 = 30 + 10 = 40 \checkmark \]

Trying values of x in 2x + 10 = 40

x2x + 10Equals 40?
1336no
1438no
1540yes
1642no
1744no

Questions

What is x in 2x + 10 = 40?

The solution of 2x + 10 = 40 is x = 15.

How do you solve 2x + 10 = 40?

Subtract 10 from both sides to get 2x = 30, then divide both sides by 2 to get x = 15.

How do I check the answer?

Replace x by 15: 2(15) + 10 = 40, which is 40.

Similar equations

    Solve 2x + 10 = 40: x = 15 (steps and check) | WordGPT