Answer:
x = {-3, -2.5}
Step-by-step explanation:
Simplifying
3 + x = 0
Solving
3 + x = 0
Move all terms containing x to the left, all other terms to the right.
Add '-3' to each side of the equation.
3 + -3 + x = 0 + -3
Combine like terms: 3 + -3 = 0
0 + x = 0 + -3
x = 0 + -3
Combine like terms: 0 + -3 = -3
x = -3
Simplifying
x = -3
Simplifying
5 + 2x = 0
Solving
5 + 2x = 0
Move all terms containing x to the left, all other terms to the right.
Add '-5' to each side of the equation.
5 + -5 + 2x = 0 + -5
Combine like terms: 5 + -5 = 0
0 + 2x = 0 + -5
2x = 0 + -5
Combine like terms: 0 + -5 = -5
2x = -5
Divide each side by '2'.
x = -2.5
Simplifying
x = -2.5
