Answer:
1
Explanation:
If you divide, multiply, subtract, or add both sides of an equation by the same number, the end result of the equation will stay the same.
1) Divide both sides by 10.
2) Simplify.
(x+3) = 4
3) Subtract by 3 on both sides.
x + 3 - 3 = 4 - 3
4) Simplify.
x = 1