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What is the value of x? 7x-9=19
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3 votes
What is the value of x? 7x-9=19

User Eric Cen
by
8.1k points

2 Answers

4 votes

x=4

19 plus 9 is 28

28 divide by 7 is 4

7 times 4 plus 9 is 19

User Johann Gerell
by
9.3k points
2 votes

7x-9=19


Add 9 both sides


7x-9+9=9+19


7x=28


Divide both sides by 7


7x/7=28/7


Simplify


X= 4



To check substitute into original equation .


7x-9=19


7(4)-9= 19


28-9= 19


19=19 it checks



User Inye
by
8.8k points
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