Question

A)y/3+5=4y/9=
B)2x/5-3/4=3x/20=
C)x/4+x/6+x/8=26=
D)2-a/10+a+5/8=-1/2=

Answer 1

Boa tarde

A)

y/3 + 5 = 4y/9
3y/9 + 45/9 = 4y/9
4y - 3y = 45
y = 45 

B)

2x/5 - 3/4 = 3x/20
8x - 15 = 3x
5x = 15
x = 3 


C)

x/4 + x/6 + x/8 = 26

6x + 4x + 3x = 24*26
13x = 24*26
x = 48 

D)

(2 - a)/10 + (a + 5)/8 = -1/2
8 - 4a + 5a + 25 = -20
a = -20 - 25 - 8 
a = -53