2x>−8 and −5x+7=12

1 answer

Let's solve the inequalities and equation step-by-step.

  1. Solving the inequality \(2x > -8\):

To isolate \(x\), divide both sides by 2:

\[ x > -4 \]

  1. Solving the equation \(-5x + 7 = 12\):

First, subtract 7 from both sides:

\[ -5x = 12 - 7 \] \[ -5x = 5 \]

Next, divide both sides by -5 (remember to reverse the inequality sign when dividing by a negative number):

\[ x = -1 \]

Summary of Results:

  • The solution to the inequality \(2x > -8\) is \(x > -4\).
  • The solution to the equation \(-5x + 7 = 12\) is \(x = -1\).

So, the two results are:

  • Inequality: \(x > -4\)
  • Equation: \(x = -1\)

Since \(-1 > -4\), the value of \(x\) from the equation satisfies the inequality as well.