Question

Solve for the variable.
1. 78 = x - 11

Answer 1

x = 89

Explanation:

78 = x - 11

+ 11 = +11 <— we add 11 since we are doing inverse operation

89 = x

Answer 2

x = 89

Explanation:

78 = x - 11

add 11 to both sides of the equation

78 + 11 = x - 11 + 11

78 + 11 = x

89 = x