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TEA [102]
3 years ago
15

What is the value of "x" for each equation? Also, please provide your process in how you solved this.

Mathematics
1 answer:
Anastasy [175]3 years ago
4 0
8+3b=-13
3b=-13-8
3b=-21
b= -7

Is the fraction (x-3)/4? If so...
(x-3)/4=12
x-3=12x4
x-3=48
x=48+3
x=51

14+3x=8x-3(x-4)
14+3x=8x-3x+12
14+3x=5x+12
14-12=5x-3x
2=2x
1=x

22x+11=4x-7
22x-4x=-7-11
18x=-18
x= -1
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Artyom0805 [142]
X/y = 2 so x = 2y
z/x = 4 so z = 4x but x = 2y so z = 4(2y) = 8y

now you have
x = 2y, z = 8y 

x + y + z          2y  + y + 8y             11y              11
------------ = -----------------------= ------------- =   ----------- = 5 1/2
     x                          2y                  2y                  2

answer
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