Answer: Tom is 46 years old and Jerry is 34 years old.
5/7x+1/7=3
multiple both sides by 7
7•5/7x+7•1/7=7•3
reduce the numbers with 7
5x+7•1/7=7•3
5x+1=7•3
5x+1=21
move the constant to the right side of the equation and change its sign
5x+1=21
-1 -1
5x=21-1
subject the numbers
5x=20
divide both sides of the equation by 5
5x=20
÷5 ÷5
x=4
Answer:
y = 2x + 3
Step-by-step explanation:
A line parallel to y = 2x has exactly the same slope but a different y-intercept, b.
Start with y = mx + b, and replace m with 2, y with -1 and x with -2:
-1 = 2(-2) + b, or
-1 = -4 + b.
Then b = 3, and the desired equation is y = 2x + 3
Answer: D, hope that helps!