Chapter 2: Q20. (page 86)

Solve each equation. Check your solution.
$- 61 = d + (- 18)$

Short Answer

Expert verified

The required solution is $d = - 43$ .

Step by step solution

Step 1. Write the given information.

The given equation is:

$- 61 = d + (- 18)$

Step 2. Calculation.

$\begin{array}{l} - 61 = d + (- 18) \\ - 61 = d - 18 [(+) (-) = (-)] \\ - 61 + 18 = d - 18 + 18 [Adding 18 onbothsides] \\ - 43 = d or d = - 43 \end{array}$

Step 3. Checking solution.

Substitute $d = - 43$ in the given equation to check:

$\begin{array}{l} - 61 = d + (- 18) \\ - 61 = - 43 - 18 \\ - 61 = - 61 \end{array}$

Hence, proved.

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Solve each equation. Check your solution.
$- 61 = d + (- 18)$

Short Answer

Step by step solution

Step 1. Write the given information.

Step 2. Calculation.

Step 3. Checking solution.

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Solve each equation. Check your solution.−61=d+(−18)

Short Answer

Step by step solution

Step 1. Write the given information.

Step 2. Calculation.

Step 3. Checking solution.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Pure Maths

Logic and Functions

Statistics

Geometry

Discrete Mathematics

Decision Maths

Study anywhere. Anytime. Across all devices.

Solve each equation. Check your solution.
$- 61 = d + (- 18)$