Maths-
General
Easy

Question

2 left parenthesis 5 x minus 20 right parenthesis minus left parenthesis 15 plus 8 x right parenthesis equals 7
What value of  satisfies the equation above?

hintHint:

Hint:
  • A linear equation in one variable is an equation that has one variable and can be solved using basic mathematical operations.

The correct answer is: x = 31


    Explanation:
    • We have given a linear expression 2 left parenthesis 5 x minus 20 right parenthesis minus left parenthesis 15 plus 8 x right parenthesis equals 7.
    • We have to find the value of x.
    • We will use basic mathematical operations to solve the given linear equation.
    Step 1 of 1:
    We have expression 2 left parenthesis 5 x minus 20 right parenthesis minus left parenthesis 15 plus 8 x right parenthesis equals 7.
    On further calculation, we will get
    2 left parenthesis 5 x minus 20 right parenthesis minus left parenthesis 15 plus 8 x right parenthesis equals 7
    10 x minus 40 minus 15 minus 8 x equals 7
    2 x minus 55 equals 7
    2x = 62
    x = 31
    Therefore, x = 31 is the value of x, that satisfies the given equation.
    Final answer:
    The value of x, that satisfies the equation 2 left parenthesis 5 x minus 20 right parenthesis minus left parenthesis 15 plus 8 x right parenthesis equals 7 is x = 31.

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