x=-7
First step-
 Multiply both sides of the equation by 1/2
second step-
Any expression divided by remains the same
third step-
Any expression multiplied by remains the same
fourth step-
When there is a in front of an expression in parentheses, change the sign of each term in the expression
fifth step-
Move constant to the right-hand side and change its sign
sixth step-
Add the numbers
step seven-
Divide both sides of the equation by
you solution would be “x=-7”
below is a picture of some of the math