Answer:
x = 11
Explanation:
7x + 3(3x + 6) = 194
open the parenthesis
7x + 3 * 3x + 3 * 6 = 194
7x + 9x + 18 = 194
subtract 18 from both sides of the equation
7x + 9x + 18 - 18 = 194 - 18
combine like terms
7x + 9x = 194 - 18
16x = 176
divide both sides of the equation by 16
16x/16 = 176/16
x = 176/16
x = 11