X-2=6x+18
-x -x
-2=5x+18
-18 -18
-20=5x
x=-4
Answer:
2x-2y
Step-by-step explanation:
2 times x = 2x
2 times -y = -2y
She earns 20 dollars as a carpenter and 25 dollars as a blacksmith
b+c=30 hours since she works 30 hours a week
25b+20c=690 since she earns 690 dollar totally and earns 25 dollars an hour as a blacksmith and 20 dollars an hour as a carpenter
lets multiply b+c=30 by -20
-20b-20c=-600
if we substract that from
25b+20c=690
5b=90
b=18 she worked as a blacksmith for 18 hours
How long would it take $120/hr to add up to $1000?
Divide $1000 by $120/hr:
$1000
----------- = 8 1/3 hours, or 8 hours 20 minutes.
$120/hr
10 times a number y
3 subtracted by A number x
12 times a number n
