Michaelshehata Michaelshehata

27-08-2019
Mathematics

contestada

13 please I have no idea what the steps for this is

13 please I have no idea what the steps for this is class=

Respuesta :

samantha10046 samantha10046

27-08-2019

Answer:

UV=142

Step-by-step explanation:

21x-13=10x+31

+13 +13

21x=10x+44

-10x=-10x

11x=44

÷11 ÷11

x=4

now substitute 4 in place of x (only have to solve one)

21(4)-13= 71

now multiply your answer by 2

71×2=142

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