11th Grade Math Help, Solving For X?
Solve for all values of x: l 2x + 5 l = 4.
btw the l’s are abs value signs. THANKS!
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Approach the problem the same as you would if the absolute value bars werent there and subtract 5 from both sides and divide by 2:
2x=-1
x= -1/2
This gives you one solution, now you must distribute a negative sign into the absolute value bars to find the second solution:
-(2x+5)=4
-2x-5=4
Then proceed as usual:
-2x=9
x=-2/9
hope this helps!