sleepingdog051p9hto8 sleepingdog051p9hto8

07-06-2018
Mathematics

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Solve both proportions. I don't understand these two at all. Please help.

Solve both proportions I dont understand these two at all Please help class=

Respuesta :

mkryukova19 mkryukova19

07-06-2018

2.
2x/5 = (x+3)/3
2x*3 = 5(x+3)
6x = 5x + 15
6x-5x =15
x = 15

3. (5x-4)/(4x+7) = 13/11
11(5x-4) = 13(4x+7)
55x - 44 = 52x + 91
55x-52x= 91 + 44
3x = 135
x=45

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