Solve the equation filling in the steps 2(x-3)+21=-3

1 answer

To solve the equation 2(x-3) + 21 = -3, start by distributing the 2 to both terms inside the parentheses:

2x - 6 + 21 = -3

Combine like terms:

2x + 15 = -3

To isolate the variable term, subtract 15 from both sides:

2x = -3 - 15

2x = -18

Finally, divide both sides by 2 to solve for x:

x = -18/2

x = -9