Answer: x=-4
Step-by-step explanation: first you collect like terms 8x-7x=1-5 then we do 8x-7x which would equal 1x or just x next we do 1-5 which equals 4 so the solution to this equation is x=-4
Answer:
Step-by-step explanation:
I'm going to assume that your equation is 
So to evaluate it we need to simplify it. Find like terms and perform addition/subtraction on them.
Answer:
x = 32/7, or 4 4/7 meals
Step-by-step explanation:
Write and solve an equation of ratios, as follows:
7/8 lb 4 meals
------------ -------------
1 lb x
x will be the number of meals necessary for the dog to eat 1 lb of food.
Cross-multiplying, (7/8)x = 4.
Multiplying both sides by 8/7 is an easy way to isolate x:
(8/7)(7/8)x = (8/7)(4)
or
x = 32/7, or 4 4/7 meals
Answer:
By substituting the value of the variable and simplifying it with the equation you get 158.
For number 5 the answer is 5/2
number 6 is 23/5
number 7 is 31/9
number 8 is 19
All you do is multiply the denominator by the whole number then the product of that you add that to the numerator and then the sum of that you just put that as your numerator and you keep the same denominator.
