Your friend solved the
equation 4x + 12x - 6 = 4(4x + 7) and got x = 34.
What error did your friend make? What is the
correct solution?
4x + 12x - 6 = 4 (4x
4 (4x + 7
)
16x
16x + 28
- 166 6 166 16x + 28
x-6=28
x - 6+ 6 = 28 + 6
x = 34