2 years ago

1) Eight times the difference between a number and seven, is the same as when five times

Mathematics

1 answer:

Maurinko [17]2 years ago

5 0

Tip: Go step-by-step

Let the number = x

Eight times the difference between a number and seven.. = 8(x-7)

is the same as... =

the number increased by 4.. x+4

8(x-7)=x+4

Distribute

8x-56=x+4

Subtract x from both sides

7x-56=4

Add 56 to both sides

7x=60

x=60/7

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