Answer:
x=-2
Step-by-step explanation:
add 18 to both sides, simplify, add 6x to both sides, simplify, divide both sides by -12.then simplify again... I hope that helps...
Answer:
multiplication property of equality
Step-by-step explanation:
Answer:
3x+8=68 degrees
6x-8= 112 degrees
Step-by-step explanation:
3x+8+6x-8=180
9x=180
x=20
3*20+8=68
6*20-8=112
1 kilo is approximately 2.2 pounds, so we can divide 30 by 2.2
Step-by-step explanation:
see the answer in the pic