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Ivahew [28]
3 years ago
15

0.5x-7= 0.3 solve the equation​

Mathematics
1 answer:
Lena [83]3 years ago
3 0

Answer:

<h3>\boxed{ \bold{ \boxed{ \sf{x = 14.6}}}}</h3>

Step-by-step explanation:

\sf{0.5x - 7 = 0.3}

Move 7 to right hand side and change it's sign

⇒\sf{0.5x = 0.3 + 7}

Add the numbers

⇒\sf{0.5x = 7.3}

Divide both sides of the equation by 0.5

⇒\sf{ \frac{0.5x}{0.5}  =  \frac{7.3}{0.5} }

Calculate

⇒\sf{x = 14.6}

Hope I helped!

Best regards!!

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Answer:

The correct option is commutative property.

Step-by-step explanation:

The expression that Renee is simplifying is:

(7)\cdot(\frac{13}{29})\cdot(\frac{1}{7})

It is provided that, Renee recognizes that 7 and \frac{1}{7} are reciprocals, so she would like to find their product before she multiplies by \frac{13}{29}.

The associative property of multiplication states that:

a\times b\times c=(a\times b)\times c=a\times (b\times c)

The commutative property of multiplication states that:

a\times b\times c=a\times c\times b=c\times a\times b

The distributive property of multiplication states that:

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a\times 1=a\\b\times 1=b

So, Renee should use the commutative property of multiplication to find the product of 7 and \frac{1}{7},

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