Question

Solve -18+x=-3A. -15B. 15C. 21D. -21I need the answer​

Answer 1

B. 15 because
-18+x=-3
X= -3 + 18
X = 15

Answer 2

Answer: $x=15$

Move all terms containing x to the left, all other terms to the right

Add 18 to each side of the equation

$-18 + 18 + x = -3 + 18$

Combine like terms: -18 + 18 = 0

$0 + x = -3 + 18\\x = -3 + 18$

Combine like terms: -3 + 18 = 15

$x=15$