WordGPT

Solve 8x + 7 = 159

The solution of 8x + 7 = 159 is x = 19.

Explain it step by step in chatMake a short video of it
The lines y = 8x + 7 and y = 159 meet at x = 19141618202224120140160180200x = 19y = 8x + 7y = 159
The lines y = 8x + 7 and y = 159 meet at x = 19. 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+7=1598x + 7 = 159
  2. 2

    Subtract 7 from both sides:

    8x+7−7=159−7 ⇒ 8x=1528x + 7 - 7 = 159 - 7 \ \Rightarrow\ 8x = 152
  3. 3

    Divide both sides by 8:

    8x8=1528 ⇒ x=19\frac{8x}{8} = \frac{152}{8} \ \Rightarrow\ x = 19
  4. 4

    Check: put x = 19 back into the equation.

    8⋅19+7=152+7=159✓8\cdot19 + 7 = 152 + 7 = 159 \checkmark
LaTeX source of the formulas on this page
\[ 8x + 7 = 159\ \Rightarrow\ x = 19 \]
\[ 8x + 7 = 159 \]
\[ 8x + 7 - 7 = 159 - 7 \ \Rightarrow\ 8x = 152 \]
\[ \frac{8x}{8} = \frac{152}{8} \ \Rightarrow\ x = 19 \]
\[ 8\cdot19 + 7 = 152 + 7 = 159 \checkmark \]

Trying values of x in 8x + 7 = 159

x8x + 7Equals 159?
17143no
18151no
19159yes
20167no
21175no

Questions

What is x in 8x + 7 = 159?

The solution of 8x + 7 = 159 is x = 19.

How do you solve 8x + 7 = 159?

Subtract 7 from both sides to get 8x = 152, then divide both sides by 8 to get x = 19.

How do I check the answer?

Replace x by 19: 8(19) + 7 = 159, which is 159.

Similar equations

    Solve 8x + 7 = 159: x = 19 (steps and check) | WordGPT