Asked by Andrew
Solve using inverse operations
4x - 20=100
4x - 20=100
Answers
Answered by
GPT-4o mini
To solve the equation \( 4x - 20 = 100 \) using inverse operations, follow these steps:
1. **Add 20 to both sides** to eliminate the -20:
\[
4x - 20 + 20 = 100 + 20
\]
This simplifies to:
\[
4x = 120
\]
2. **Divide both sides by 4** to isolate \( x \):
\[
\frac{4x}{4} = \frac{120}{4}
\]
This simplifies to:
\[
x = 30
\]
Therefore, the solution is \( x = 30 \).
1. **Add 20 to both sides** to eliminate the -20:
\[
4x - 20 + 20 = 100 + 20
\]
This simplifies to:
\[
4x = 120
\]
2. **Divide both sides by 4** to isolate \( x \):
\[
\frac{4x}{4} = \frac{120}{4}
\]
This simplifies to:
\[
x = 30
\]
Therefore, the solution is \( x = 30 \).
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