3 years ago

Need help is 4. distribute property of equality or subtraction property of equality

1 answer:

jeka943 years ago

7 0

#4 .
x + 8 - 8 = 7 - 8

It's "Subtraction property of equality"

It's correct

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inna [77]

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Free_Kalibri [48]

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Naddika [18.5K]

Step-by-step explanation:

HERE,

$\angle{PQR=20+2x }$ ⠀

$\angle{ QRS=6x }$ ⠀

we know that,

sum of consecutive angle of a parallelogram =180

so,

According to the question,

$\angle{PQR}+\angle{QRS}=180$ ⠀

$\tt{20+2x+6x=180 }$ ⠀

$\tt{8x+20=180 }$ ⠀

$\tt{8x=180-20 }$ ⠀

$\tt{8x=160 }$ ⠀

$\tt{x=\dfrac{160}{20} }$ ⠀

$\tt{ x=20 }$ ⠀

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Digiron [165]

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How to:
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3 years ago

serg [7]

Answer:

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