Answer:
x = -7
Step-by-step explanation:
Add 4 to both sides:
7x - 4 + 4 = 3 + 8x + 4
Simplify (The 4's cancel out)
7x = 8x + 7
Subtract 8x from both sides (The 8's cancel out)
7x - 8x = 8x + 7 -8x
Simplify:
-x = 7
Divide both sides by -1
-x/-1 = 7/-1
Simplify:
x = -7
Hope this helps!
