What is the value of the expression 18-2x(4+3)
Mathematics · Middle School · Thu Jan 21 2021
Answered on
Given the numerical equation:
18 - 2x(4 + 3)
Determine the value of x.
Solution:
In order to determine the value of x, we must first start by adding the values inside the parenthesis.
= 18 - 2x(4 + 3)
= 18 - 2x(7)
= 18 - 14x
Transpose -14x on the other side of the equation, hence it must be noted that whenever a number is transpose, the sign changes.
14x = 18
14x/14 = 18/14
x = 8/7
Final answer:
x = 8/7