Question

find the value of x
7x-7=21, 9x+1=19, x/7-3=18 step by step
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Answer 1

Answer:

x=4,2,147 respectively

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Answer 2

Answer:

heya mate ☺

$1) \: 7x - 7 = 21 \\ = > 7x = 21 + 7 \\ = > 7x = 28 \\ = > x = 28 \div 7 \\ = > x = 4$

$2) \: 9x + 1 = 19 \\ = > 9x = 19 - 1 \\ = > 9x = 18 \\ = > x = 18 \div 9 \\ = > x = 2$

3) x / 7 - 3 = 18

=> x - 21 / 7 = 18

=> x - 21 = 18 * 7

=> x - 21 = 126

=> x = 126 + 21

=> x = 147

✏ hope it helps u ✏