Question

1. 0.7x + 0.3x = 0.5x + 6​

Answer 1

Given:

• $\sf{0.7x + 0.3x = 0.5x + 6}$

To find:

• Value of x

Solution:

$: \implies \sf{0.7x + 0.3x = 0.5x + 6}$

$: \implies \sf{0.10x = 0.5x + 6}$

$: \implies \sf{0.10x - 0.5x = 6}$

$: \implies \sf{0.5x = 6}$

$: \implies \sf{ \frac{5x}{10} = 6}$

$: \implies \sf{ {5x} = 6 \times 10}$

$: \implies \sf{ {5x} = 60}$

$: \implies \sf{ {x} = \cancel \frac{60}{5}}$

$:\implies \underline{\boxed{\frak{12}}} \: \pink{ \bigstar}$

• Hence, the answer is 12

Thank you!

@itzshivani

Answer 2

Answer:

The given equation is 0.7x+0.3x=0.5x+6

1.0x=0.5x+6

1.0x−0.5x=6

0.5x=6

⇒x=

0.5

6

⇒x=12

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