Answer: 55
Step-by-step explanation:
Let the number of cars washed last year be denoted as x.
This year, he washed 14 fewer cars than during last year's car wash. This will be denoted as x-14.
We can then represent them in an equation as:
x + (x - 14) = 96
2x - 14 = 96
2x = 96 + 14
2x = 110
x = 110/2
x = 55
Therefore, he washed 55 cars this year
To do linear equations, basically, just imagine it with an equals sign. It is pretty much the same as normal algebra, so it's not too confusing.
An example of a linear equation is 3x - 7 = 11
with this, your objective is to get 'x' on its own and to do this, do inverse operations (the opposite to what is actually done)
For instance, to get '3x' on its own, you must add 7.
So do this for both sides to give you
3x = 18
Yeah?
Now you must get 'x' on its own. It currently has 3 x's at the moment, so you must divide it by 3 to give you one 'x'. A rule with these - what you do to one side you must do to the other.
So this means that if you divide 3x by 3, you must divide 18 by 3.
This leaves you with x = 6.
The letter (Z) is the symbol used to represent integers. An integer can be 0, a positive number to infinity, or a negative number to negative infinity.
Answer:
min = (4, -136) ; max = (-2,80)
Step-by-step explanation:
The option is B
