Answer: [tex]-\frac{23}{4}[/tex] or 5.75
Step-by-step explanation:
Step 1. Simplify 21 + 30 to 51
51 = −4c + 28
Step 2. Subtract 28 from both sides
51 - 28 = -4c
Step 3. Simplify 51 - 28 to 23
23 = -4c
Step 4. Divide both sides by -4
[tex]-\frac{23}{4}[/tex] = c
Step 5. Switch sides
c = [tex]-\frac{23}{4}[/tex]
Decimal Form Answer: -5.75
I hope this helps you out.
