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3 years ago

Please help solve 2d + 7 =9

Mathematics

2 answers:

bogdanovich [222]3 years ago

7 0

Answer:

d=1

Step-by-step explanation:

Move 7 to the other side by subtracting 7 on both sides:

2d+7-7=9-7

The equation now looks like this:

2d=2

Divide 2 on both sides:

2d/2=2/2

The equation now looks like this:

d=1 which is the answer

aleksandr82 [10.1K]3 years ago

5 0

Answer:

D=1 or just 1, i dont get what the question is

Step-by-step explanation:

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Step-by-step explanation:

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1.7(10^−13)(3.5)(10^25)

liq [111]

$\boxed{\bf\huge{Answer:—}}$

$\sf \longmapsto5.95 \times {10}^{ 12}$

$\boxed{\huge\bf{ Solution:—}}$

$\sf \longmapsto \: (1.7 \times 10 {}^{ - 13} )(3.5 \times {10}^{25} )$

$\sf \longmapsto1.7 \times 3.5 ( {10}^{25} \times {10}^{ - 13} )$

$\sf \longmapsto \: 1.7 \times 3.5( {10}^{25 - 13} )$

$\sf \longmapsto3.5 \: \times 1.7( {10}^{12} )$

$\sf \longmapsto5.95 \times {10}^{ + 12}$

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Answer:

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Step-by-step explanation:

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