30+×>40 80-× 45-5=40 38-8<50 60+×=90 ×-8=10

Let's solve each of these inequalities and equations step by step.

1. Inequality: \( 30 + x > 40 \)

   • Subtract 30 from both sides:
     • \( x > 40 - 30 \)
     • \( x > 10 \)

2. Equation: \( 80 - x \)

   • There's no equation provided to equal something, so this expression stands alone. We can say it's simply \( 80 - x \).

3. Equation: \( 45 - 5 = 40 \)

   • This is a true statement since \( 45 - 5 = 40 \).

4. Inequality: \( 38 - 8 < 50 \)

   • Calculate the left side:
     • \( 30 < 50 \)
   • This is a true statement since \( 30 < 50 \).

5. Equation: \( 60 + x = 90 \)

   • Subtract 60 from both sides:
     • \( x = 90 - 60 \)
     • \( x = 30 \)

6. Equation: \( x - 8 = 10 \)

   • Add 8 to both sides:
     • \( x = 10 + 8 \)
     • \( x = 18 \)

To summarize:

1. \( x > 10 \)
2. \( 80 - x \) (no equation to solve)
3. True statement.
4. True statement.
5. \( x = 30 \)
6. \( x = 18 \)

If you need any further clarifications or help with other problems, feel free to ask!