Question

ecuacionessss
a)x+3/5=4
b)3x+5x+36=100
c)2/5x+3/10x=40
d)2.(x+3)=10
e)6(x-2)=18

Answer 1

a) X + 3/5 = 4

X = 4 - 3/5

4 - 3/5 = [(4x5) - 3]/20 = (20 - 3)/20 = 17/3

X = 17/3

b) 3X + 5X + 36 = 100

8X = 100 - 36

8X = 64

X = 64/8

X = 8

c) (2/5)X + (3/10)X = 40

(2/5)X + (3/10)X = (2(2) + 3)/10X = (4 + 3)/10X = (7/10)X

(7/10)X = 40

7X = 400

X = 400/7

d) 2(X + 3) = 10

2X + 6 = 10

2X = 10 - 6

2X = 4

X = 4/2

X = 2

e) 6(X - 2) = 18

6X - 12 = 18

6X = 18 + 12

6X = 30

X = 30/6

X = 5