Math
posted by Rich on .
What is the value of x in the following problems, y=0 in all of them.
y=5+2(3+4x)
y=52(3+4x)
y=52(3+4x)

0 = 5+2(3+4x)
Subtract 5 from both sides
5 = 2(3+4x)
Distribute the 2
5 = 2(3) + 2(4x)
Simplify
5 = 6 + 8x
Subtract 6 from both sides
11 = 8x
Divide both sides by 8.
11/8 = x
y = 52(3+4x)
0 = 52(3+4x)
5 = 2(3+4x)
5 = 6  8x
1 = 8x
1/8 = x
Now you try the last one