Solve the equation.|7x+4|=18
2 answers:
Hi Ella
|7x + 4| = 18
Solve absolute value
We know either 7x + 4 = 18 or 7x + 4 = -18
There are 2 possibilities but we gonna solve it one after another
Lets start with possibility 1
7x + 4 = 18
7x = 18 - 4
7x = 14
x= 14/7
x= 2
Now, lets solve for possibility 2
7x + 4 = -18
7x = -18 - 4
7x = -22
x= -22/7
Final answers : X = 2 or x = -22/7
I hope that's help !
X equals twelve divided by seven
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