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Solve 10x + 1 = 151

The solution of 10x + 1 = 151 is x = 15.

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The lines y = 10x + 1 and y = 151 meet at x = 1510121416182080100120140160180200220x = 15y = 10x + 1y = 151
The lines y = 10x + 1 and y = 151 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.

    10x+1=15110x + 1 = 151
  2. 2

    Subtract 1 from both sides:

    10x+1−1=151−1 ⇒ 10x=15010x + 1 - 1 = 151 - 1 \ \Rightarrow\ 10x = 150
  3. 3

    Divide both sides by 10:

    10x10=15010 ⇒ x=15\frac{10x}{10} = \frac{150}{10} \ \Rightarrow\ x = 15
  4. 4

    Check: put x = 15 back into the equation.

    10⋅15+1=150+1=151✓10\cdot15 + 1 = 150 + 1 = 151 \checkmark
LaTeX source of the formulas on this page
\[ 10x + 1 = 151\ \Rightarrow\ x = 15 \]
\[ 10x + 1 = 151 \]
\[ 10x + 1 - 1 = 151 - 1 \ \Rightarrow\ 10x = 150 \]
\[ \frac{10x}{10} = \frac{150}{10} \ \Rightarrow\ x = 15 \]
\[ 10\cdot15 + 1 = 150 + 1 = 151 \checkmark \]

Trying values of x in 10x + 1 = 151

x10x + 1Equals 151?
13131no
14141no
15151yes
16161no
17171no

Questions

What is x in 10x + 1 = 151?

The solution of 10x + 1 = 151 is x = 15.

How do you solve 10x + 1 = 151?

Subtract 1 from both sides to get 10x = 150, then divide both sides by 10 to get x = 15.

How do I check the answer?

Replace x by 15: 10(15) + 1 = 151, which is 151.

Similar equations

    Solve 10x + 1 = 151: x = 15 (steps and check) | WordGPT