Question

State true or false
$5 - ( - 10) = 15$
A.True
B.False

Answer 1

Hint: Take the left side of the equation and simplify the expression and compare its value with the right hand side of the expression. When the values on both sides of the equation are equal then the given expression is true else it's false.

Complete step-by-step answer:
Take Left hand side of the equation,
LHS $ = 5 - ( - 10)$
Open the brackets, when there is negative sign outside the bracket then the sign of the term inside the bracket also changes. Negative with negative here becomes positive.
LHS $ = 5 + 10$
Simplify finding the sum of the terms in the above expression –
LHS$ = 15$
The above expression is equal to the right hand side of the equation.
Hence, from the given multiple choices – the option A is the correct answer.
So, the correct answer is “Option A”.

Note: Remember the basic rules for the simplification -
I.Addition of two positive terms gives the positive term
II.Addition of one negative and positive term, you have to do subtraction and give the sign of a bigger number whether positive or negative.
III.Addition of two negative numbers gives a negative number but in actual you have to add both the numbers and give a negative sign to the resultant answer.
IV.Product of two positive terms gives resultant value in positive.
V.Product of two negative terms gives the resultant value in positive.
VI.Product of one positive and one negative term gives value in negative.