Question

Розв'яжіть рівняння :2.92+(0.08+х)=3.8
б)4.4х+7.6х-2х+1.1=51.1

Answer 1

$2.92 + (0.08 + x) = 3.8 \\ 2.92 + 0.08 + x = 3.8 \\ 3 + x = 3.8 \\ x = 3.8 - 3 \\ x = 0.8$

$4.4x + 7.6x - 2x + 1.1 = 51.1 \\ 12x - 2x = 51.1 - 1.1 \\ 10x = 50 \\ x = 50 \div 10 \\ x = 5$