Answer:
2.
Step-by-step explanation:
5x + 2(11-1) = 30
First, solve the ones inside the bracket:
11 - 1 = 10
Next, multiply the number inside the bracket by the number next to bracket:
2 × 10 = 20
The equation will now be:
5x + 20 = 30
Since 5x and 20 are not like terms, carry +20 over to the other side making it 30 - 20:
5x = 30 - 20
5x = 10
Now, divide both sides by the coefficient of x (5):
5x/5 = 10/5
x = 2
The answer to the equation is 2.
