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Solve 5x + 7 = 17

The solution of 5x + 7 = 17 is x = 2.

The lines y = 5x + 7 and y = 17 meet at x = 2-4-22468-101020304050x = 2y = 5x + 7y = 17
The lines y = 5x + 7 and y = 17 meet at x = 2. 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.

    5x+7=175x + 7 = 17
  2. 2

    Subtract 7 from both sides:

    5x+7−7=17−7 ⇒ 5x=105x + 7 - 7 = 17 - 7 \ \Rightarrow\ 5x = 10
  3. 3

    Divide both sides by 5:

    5x5=105 ⇒ x=2\frac{5x}{5} = \frac{10}{5} \ \Rightarrow\ x = 2
  4. 4

    Check: put x = 2 back into the equation.

    5⋅2+7=10+7=17✓5\cdot2 + 7 = 10 + 7 = 17 \checkmark
LaTeX source of the formulas on this page
\[ 5x + 7 = 17\ \Rightarrow\ x = 2 \]
\[ 5x + 7 = 17 \]
\[ 5x + 7 - 7 = 17 - 7 \ \Rightarrow\ 5x = 10 \]
\[ \frac{5x}{5} = \frac{10}{5} \ \Rightarrow\ x = 2 \]
\[ 5\cdot2 + 7 = 10 + 7 = 17 \checkmark \]

Trying values of x in 5x + 7 = 17

x5x + 7Equals 17?
07no
112no
217yes
322no
427no

Questions

What is x in 5x + 7 = 17?

The solution of 5x + 7 = 17 is x = 2.

How do you solve 5x + 7 = 17?

Subtract 7 from both sides to get 5x = 10, then divide both sides by 5 to get x = 2.

How do I check the answer?

Replace x by 2: 5(2) + 7 = 17, which is 17.

Similar equations

    Solve 5x + 7 = 17: x = 2 (steps and check) | WordGPT