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Solve 10x + 15 = 25

The solution of 10x + 15 = 25 is x = 1.

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The lines y = 10x + 15 and y = 25 meet at x = 1-4-2246-40-2020406080x = 1y = 10x + 15y = 25
The lines y = 10x + 15 and y = 25 meet at x = 1. 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+15=2510x + 15 = 25
  2. 2

    Subtract 15 from both sides:

    10x+15−15=25−15 ⇒ 10x=1010x + 15 - 15 = 25 - 15 \ \Rightarrow\ 10x = 10
  3. 3

    Divide both sides by 10:

    10x10=1010 ⇒ x=1\frac{10x}{10} = \frac{10}{10} \ \Rightarrow\ x = 1
  4. 4

    Check: put x = 1 back into the equation.

    10⋅1+15=10+15=25✓10\cdot1 + 15 = 10 + 15 = 25 \checkmark
LaTeX source of the formulas on this page
\[ 10x + 15 = 25\ \Rightarrow\ x = 1 \]
\[ 10x + 15 = 25 \]
\[ 10x + 15 - 15 = 25 - 15 \ \Rightarrow\ 10x = 10 \]
\[ \frac{10x}{10} = \frac{10}{10} \ \Rightarrow\ x = 1 \]
\[ 10\cdot1 + 15 = 10 + 15 = 25 \checkmark \]

Trying values of x in 10x + 15 = 25

x10x + 15Equals 25?
-15no
015no
125yes
235no
345no

Questions

What is x in 10x + 15 = 25?

The solution of 10x + 15 = 25 is x = 1.

How do you solve 10x + 15 = 25?

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

How do I check the answer?

Replace x by 1: 10(1) + 15 = 25, which is 25.

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    Solve 10x + 15 = 25: x = 1 (steps and check) | WordGPT