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Solve 5x + 5 = 70

The solution of 5x + 5 = 70 is x = 13.

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The lines y = 5x + 5 and y = 70 meet at x = 1381012141618405060708090100x = 13y = 5x + 5y = 70
The lines y = 5x + 5 and y = 70 meet at x = 13. 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+5=705x + 5 = 70
  2. 2

    Subtract 5 from both sides:

    5x+5−5=70−5 ⇒ 5x=655x + 5 - 5 = 70 - 5 \ \Rightarrow\ 5x = 65
  3. 3

    Divide both sides by 5:

    5x5=655 ⇒ x=13\frac{5x}{5} = \frac{65}{5} \ \Rightarrow\ x = 13
  4. 4

    Check: put x = 13 back into the equation.

    5⋅13+5=65+5=70✓5\cdot13 + 5 = 65 + 5 = 70 \checkmark
LaTeX source of the formulas on this page
\[ 5x + 5 = 70\ \Rightarrow\ x = 13 \]
\[ 5x + 5 = 70 \]
\[ 5x + 5 - 5 = 70 - 5 \ \Rightarrow\ 5x = 65 \]
\[ \frac{5x}{5} = \frac{65}{5} \ \Rightarrow\ x = 13 \]
\[ 5\cdot13 + 5 = 65 + 5 = 70 \checkmark \]

Trying values of x in 5x + 5 = 70

x5x + 5Equals 70?
1160no
1265no
1370yes
1475no
1580no

Questions

What is x in 5x + 5 = 70?

The solution of 5x + 5 = 70 is x = 13.

How do you solve 5x + 5 = 70?

Subtract 5 from both sides to get 5x = 65, then divide both sides by 5 to get x = 13.

How do I check the answer?

Replace x by 13: 5(13) + 5 = 70, which is 70.

Similar equations

    Solve 5x + 5 = 70: x = 13 (steps and check) | WordGPT