Answer:
x = -7/10
Another way of writing -7/10 is -0.7. Both ways are correct.
Step-by-step explanation:
x * 2 + 8x + 7 = 0
1. Add similar elements: 2x + 8x = 10x
10x + 7 = 0
2. Subtract 7 from both sides.
10x + 7 - 7 = 0 - 7
3. Simplify.
10x = -7
4. Divide both sides by 10.
10x / 10 = -7 / 10
5. Simplify.
x = -7/10
