The greatest number is 70000 and i know because im un fourth grade
<h2>Solving Equations</h2>
To solve linear equations, we must perform inverse operations on both sides of the equal sign to <em>cancel values out</em>.
- If something is being added to x, subtract it from both sides.
- If something is being subtracted from x, add it on both sides.
- Same with multiplication and division. If x is being divided, multiply. If x is being multiplied, divide.
We perform inverse operations to<em> combine like terms</em>. This means to get x to one side and everything else on the other.
<h2>Solving the Questions</h2><h3>Question 1</h3>

Because 7 is being added to x, subtract it from both sides:

Because x is being multiplied by 5, divide both sides by 5:

Therefore.
.
<h3>Question 2</h3>

Here, we can group all the x values on the left side of the equation. Subtract 5x from both sides:

To isolate x, subtract 4 from both sides:

Divide both sides by 2:

Therefore,
.
The answer 1 because x:x=1
Answer:
1. 20² = 400
2. 4⁴ = 256
3. 2⁷ = 128
4. 3⁵ = 243
5. 10³ = 1,000
6. 7⁶ = 117,649
7. 25³ = 15,625
8. 5⁷ = 78,125
9. 6.5² = 42.25
i wasnt really sure what you meant but i hope this helps