Start with parenthesis so that will be 7x -21so then you will get 4x = 7x -21 then you will subtract 7x and 4x and you will get -3x = -21 and your answer is 7 because both numbers are a negative and that will equal a positive.
Answer:
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Step-by-step explanation:
Which of these is a binomial?
D.x+2y^2-7
Answer:
7^8
Step-by-step explanation:
Find what each exponent equals
7^12 equals 13,841,287,201
7^4 equals 2,401
Divide the two numbers
It equals 5,764,801 which is equivalent to 7^8
Answer:
−
4
/3
⋅
Step-by-step explanation:
sorry if it is wrong!
We are given that 76 persons can complete the job in 42 days.
We need to find the number of days will 56 persons do the same job.
Let us assume that in x number of days will 56 persons do the same job.
Number of days taken by 1 person to complete same work = 76 × 42 =3192 days.
56 person will take = 
= 57.
<h3>
Therefore, 57 days will 56 persons do the same job.</h3>
