Question

points 10 submitting an external tool -7(-8x + 4)= -7(-8x + 4) answer attempt 1 out of 2

Explanation:

Step1: Expand both sides.

Using the distributive property \(a(b + c)=ab+ac\), we have \(-7\times(-8x)+(-7)\times4=-7\times(-8x)+(-7)\times4\), which simplifies to \(56x - 28=56x - 28\).

Step2: Subtract \(56x\) from both sides.

\((56x - 56x)-28=(56x - 56x)-28\), resulting in \(- 28=-28\).
This is an identity. It means that the equation is true for all real - values of \(x\).

Answer:

\(x\in R\) (where \(R\) represents the set of all real numbers)