Question

(ii) 7 + 5x - 3x = 21
(v) 7 (x – 4)+ 13 = 6
viii) 10y – 0.2 (7 - y) = 19​

Answer 1

Answer:

(ii) x=7

(v) x=3

Hope. it helps

Answer 2

Step-by-step explanation:

(ii) 7+5x-3x = 21

7+2x= 21

2x= 21-7

2x= 14

x= 14/2

x= 7

(v) 7(x-4)+13= 6

7x-28+13= 6

7x-15= 6

7x= 6+15

7x= 21

x= 21/7

x= 3

(viii) 10y–0.2(7 - y)= 19

10y-1.4+0.2y= 19

10y+0.2y= 19+1.4

10.2y= 20.4

y= 20.4×10/10.2×10

y= 204/102

y= 2

correct explanation

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