Question

5 upon 2 x = -5 chapter simple equation class 7​

Answer 1

Answer:

Step-by-step explanation:

5^(2x)=-5

2x=-1 ( because if bases are same then powers are equal)

x=-½

Answer 2

The value of x = $- \frac{1}{2}$

GIVEN:- 5 upon 2 x = -5

TO FIND:- the value of x

SOLUTION:-

• First, we'll need to find the expression of the given algebraic phrase which in mathematics is a finite combination of symbols that is formed perfectly according to rules that depend on the context of the algebraic phrase.

• Upon imply fraction, the number says a upon b is a/b

According to the question, 5 upon 2 x = -5 means

$\frac{5}{2x} = - 5$

By cross multiplying

$5 \times 1 = - 5 \times 2x \\ 5 = - 10x$

Dividing both sides by -10

$\frac{5}{ - 10} = \frac{ - 10x}{ - 10} \\ - \frac{1}{2} = x \\ x = - \frac{1}{2}$

Hence, the value of x = $- \frac{1}{2}$

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