Question

If 7x+5=-2 find the value of 8x

Answer 1

`7x+5=-2 \\ 7x=-2-5 \\ 7x=-7 \\ x=-1 \\ 8x=8* (-1) = -8 \\ \\ \\\huge\text{Answer : 8x=-8}`

Answer 2

7x + 5 = -2;

7x = -2 - 5;

7x = -7;

x = -1;

8x = 8*(-1) = -8;