WordGPT

Solve 2x + 7 = 23

The solution of 2x + 7 = 23 is x = 8.

Explain it step by step in chatMake a short video of it
The lines y = 2x + 7 and y = 23 meet at x = 82468101214101520253035x = 8y = 2x + 7y = 23
The lines y = 2x + 7 and y = 23 meet at x = 8. 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+7=232x + 7 = 23
  2. 2

    Subtract 7 from both sides:

    2x+7−7=23−7 ⇒ 2x=162x + 7 - 7 = 23 - 7 \ \Rightarrow\ 2x = 16
  3. 3

    Divide both sides by 2:

    2x2=162 ⇒ x=8\frac{2x}{2} = \frac{16}{2} \ \Rightarrow\ x = 8
  4. 4

    Check: put x = 8 back into the equation.

    2⋅8+7=16+7=23✓2\cdot8 + 7 = 16 + 7 = 23 \checkmark
LaTeX source of the formulas on this page
\[ 2x + 7 = 23\ \Rightarrow\ x = 8 \]
\[ 2x + 7 = 23 \]
\[ 2x + 7 - 7 = 23 - 7 \ \Rightarrow\ 2x = 16 \]
\[ \frac{2x}{2} = \frac{16}{2} \ \Rightarrow\ x = 8 \]
\[ 2\cdot8 + 7 = 16 + 7 = 23 \checkmark \]

Trying values of x in 2x + 7 = 23

x2x + 7Equals 23?
619no
721no
823yes
925no
1027no

Questions

What is x in 2x + 7 = 23?

The solution of 2x + 7 = 23 is x = 8.

How do you solve 2x + 7 = 23?

Subtract 7 from both sides to get 2x = 16, then divide both sides by 2 to get x = 8.

How do I check the answer?

Replace x by 8: 2(8) + 7 = 23, which is 23.

Similar equations

    Solve 2x + 7 = 23: x = 8 (steps and check) | WordGPT