WordGPT

Solve 8x + 12 = 172

The solution of 8x + 12 = 172 is x = 20.

Explain it step by step in chatMake a short video of it
The lines y = 8x + 12 and y = 172 meet at x = 2014161820222426120140160180200220x = 20y = 8x + 12y = 172
The lines y = 8x + 12 and y = 172 meet at x = 20. 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.

    8x+12=1728x + 12 = 172
  2. 2

    Subtract 12 from both sides:

    8x+12−12=172−12 ⇒ 8x=1608x + 12 - 12 = 172 - 12 \ \Rightarrow\ 8x = 160
  3. 3

    Divide both sides by 8:

    8x8=1608 ⇒ x=20\frac{8x}{8} = \frac{160}{8} \ \Rightarrow\ x = 20
  4. 4

    Check: put x = 20 back into the equation.

    8⋅20+12=160+12=172✓8\cdot20 + 12 = 160 + 12 = 172 \checkmark
LaTeX source of the formulas on this page
\[ 8x + 12 = 172\ \Rightarrow\ x = 20 \]
\[ 8x + 12 = 172 \]
\[ 8x + 12 - 12 = 172 - 12 \ \Rightarrow\ 8x = 160 \]
\[ \frac{8x}{8} = \frac{160}{8} \ \Rightarrow\ x = 20 \]
\[ 8\cdot20 + 12 = 160 + 12 = 172 \checkmark \]

Trying values of x in 8x + 12 = 172

x8x + 12Equals 172?
18156no
19164no
20172yes
21180no
22188no

Questions

What is x in 8x + 12 = 172?

The solution of 8x + 12 = 172 is x = 20.

How do you solve 8x + 12 = 172?

Subtract 12 from both sides to get 8x = 160, then divide both sides by 8 to get x = 20.

How do I check the answer?

Replace x by 20: 8(20) + 12 = 172, which is 172.

Similar equations

    Solve 8x + 12 = 172: x = 20 (steps and check) | WordGPT