3 years ago

How do I find the value of X for the equation (3x+1)+(4x-5)=8x-9

Mathematics

1 answer:

castortr0y [4]3 years ago

6 0

(3x+1)+(4x-5)=8x-9

7x-1=8x-9

7x=8x-8

-x=-8

X=8

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Tom has a large photo he wants to shrink to wallet-sized. It's width is 20 centimeters and it's len is 30 centimeters. If he wan

dsp73

We can use ratios, in other words, if one part of the photo is changed x times, how many times does the other part change?

We can set up the proportion as :
width 1 : length 1 = width 2 : length 2

20 : 30 = 5 : x

We do inverse multiplication, or multiply the outer with outer and inner with inner (W1 * L2 and L1 * W2)

20*x = 30*5
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2 years ago

For the diagram at right, write and solve an equation to find x

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Answer:

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Step-by-step explanation:

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