The answer here is A. since they are laying 100 bricks per hour, plus the 200 that they have already laid. Hope this helps!
2(3x+7)+x=70
mutiply the bracket by 2
(2)(3x)(2)(7)+x= 70
6x+14+x= 70
6x+x+14= 70 ( combine like terms)
7x+14= 70
move 14 to the other side
sign changes from +14 to -14
7x+14-14=70-14
7x= 56
divide both sides by 7
7x/7= 56/7
x=8
Answer: x= 8
The first step to solve the equation is to add 3 to both sides.
10,000/250=40
40x2=80
The answer is 80 defective trains
Answer:
what are we soposed to do?
Step-by-step explanation: