Question

0.7(3s+4)−1.1s=7.9 please help solve

Answer 1

2.1s + 2.8 -1.1s =7.9
=2.1 s -1.1s. = 7.9 - 2.8
= 1.0s. = 5.1
= s. = 5.1 /1.0
= s = 5.1

Answer 2

$0.7 \times 3s + 0.7 \times 4 - 1.1s = 7.9$
$2.10s + 2.80 - 1.1s = 7.9$
$(2.1 - 1.1)s = 7.9 - 2.8$
$s = 5.10$
thus ans is s = 5.10
hope you got it :)