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Chapter 1: Q69. (page 39)

Write an equation that involves two or more operations with a solution of 鈥� 7.

Short Answer

Expert verified

The equation is2路x+7=鈭�7

Step by step solution

01

Step 1. Understand what is given.

Given: Solution = - 7.

02

Step 2. Make a strategy.

Let us assume that the variable is x. We will pick two numbers a and b so that the equation has two operations: x+a鈭�b.

03

Step 3. Calculation.

Then we set it equal to the solution 鈥� 7.

x+a鈭�b=鈭�7鈬�a鈭�b=鈭�7鈭�x

Then we compare R.H.S with L.H.S

a=7andb=x

That means,

x+7+x=鈭�7鈬�2路x+7=鈭�7

So, the equation is2路x+7=鈭�7

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