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Solve 7x + 5 = 103

The solution of 7x + 5 = 103 is x = 14.

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The lines y = 7x + 5 and y = 103 meet at x = 1481012141618206080100120140x = 14y = 7x + 5y = 103
The lines y = 7x + 5 and y = 103 meet at x = 14. 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+5=1037x + 5 = 103
  2. 2

    Subtract 5 from both sides:

    7x+5−5=103−5 ⇒ 7x=987x + 5 - 5 = 103 - 5 \ \Rightarrow\ 7x = 98
  3. 3

    Divide both sides by 7:

    7x7=987 ⇒ x=14\frac{7x}{7} = \frac{98}{7} \ \Rightarrow\ x = 14
  4. 4

    Check: put x = 14 back into the equation.

    7⋅14+5=98+5=103✓7\cdot14 + 5 = 98 + 5 = 103 \checkmark
LaTeX source of the formulas on this page
\[ 7x + 5 = 103\ \Rightarrow\ x = 14 \]
\[ 7x + 5 = 103 \]
\[ 7x + 5 - 5 = 103 - 5 \ \Rightarrow\ 7x = 98 \]
\[ \frac{7x}{7} = \frac{98}{7} \ \Rightarrow\ x = 14 \]
\[ 7\cdot14 + 5 = 98 + 5 = 103 \checkmark \]

Trying values of x in 7x + 5 = 103

x7x + 5Equals 103?
1289no
1396no
14103yes
15110no
16117no

Questions

What is x in 7x + 5 = 103?

The solution of 7x + 5 = 103 is x = 14.

How do you solve 7x + 5 = 103?

Subtract 5 from both sides to get 7x = 98, then divide both sides by 7 to get x = 14.

How do I check the answer?

Replace x by 14: 7(14) + 5 = 103, which is 103.

Similar equations

    Solve 7x + 5 = 103: x = 14 (steps and check) | WordGPT