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Solve 7x + 8 = 141

The solution of 7x + 8 = 141 is x = 19.

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The lines y = 7x + 8 and y = 141 meet at x = 19141618202224100120140160180x = 19y = 7x + 8y = 141
The lines y = 7x + 8 and y = 141 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.

    7x+8=1417x + 8 = 141
  2. 2

    Subtract 8 from both sides:

    7x+8−8=141−8 ⇒ 7x=1337x + 8 - 8 = 141 - 8 \ \Rightarrow\ 7x = 133
  3. 3

    Divide both sides by 7:

    7x7=1337 ⇒ x=19\frac{7x}{7} = \frac{133}{7} \ \Rightarrow\ x = 19
  4. 4

    Check: put x = 19 back into the equation.

    7⋅19+8=133+8=141✓7\cdot19 + 8 = 133 + 8 = 141 \checkmark
LaTeX source of the formulas on this page
\[ 7x + 8 = 141\ \Rightarrow\ x = 19 \]
\[ 7x + 8 = 141 \]
\[ 7x + 8 - 8 = 141 - 8 \ \Rightarrow\ 7x = 133 \]
\[ \frac{7x}{7} = \frac{133}{7} \ \Rightarrow\ x = 19 \]
\[ 7\cdot19 + 8 = 133 + 8 = 141 \checkmark \]

Trying values of x in 7x + 8 = 141

x7x + 8Equals 141?
17127no
18134no
19141yes
20148no
21155no

Questions

What is x in 7x + 8 = 141?

The solution of 7x + 8 = 141 is x = 19.

How do you solve 7x + 8 = 141?

Subtract 8 from both sides to get 7x = 133, then divide both sides by 7 to get x = 19.

How do I check the answer?

Replace x by 19: 7(19) + 8 = 141, which is 141.

Similar equations

    Solve 7x + 8 = 141: x = 19 (steps and check) | WordGPT