Question

find the value of x.
4x - 8y = 20
3x + 4y = 5
×2 ↓
6x + 8y = 10
+
4x - 8y = 20
6x + 8y = 10
10x = 30
x =

Explanation:

Step1: Analyze the equation \(10x = 30\)

We need to solve for \(x\) in the equation \(10x=30\). To isolate \(x\), we use the inverse operation of multiplication, which is division. We divide both sides of the equation by 10.
\[x=\frac{30}{10}\]

Step2: Calculate the value of \(x\)

Simplify the right - hand side of the equation \(\frac{30}{10}\). Since \(30\div10 = 3\), we get \(x = 3\).

Answer:

\(x = 3\)