Question

1. 6х + 5 = 16х - 5 А. 1
2. 4(х – 3) = х + 6 Б. 8;
3. (5х + 8) – (8х + 14) = 9 В. - 5;
4. 0,6х – 5,4 = - 0,8х + 5,8 Г. 3;
Д. 6
Соедините пожалуйста по типу 1-Б 2-Г и тд.

Answer 1

$1.$

$6x + 5 = 16 x- 5 \\ 6x - 16x = - 5 - 5 \\ - 10x = - 10 \\ x = 1$

$2.$

$4(x - 3) = x + 6 \\ 4x - 12 = x + 6 \\ 4x - x = 6 + 12 \\ 3x = 18 \\ x = 6$

$3.$

$(5x + 8) - (8x + 14) = 9 \\ 5x + 8 - 8x - 14 = 9 \\ - 3x = 9 + 14 - 8 \\ - 3x = 15 \\ x = - 5$

$4.$

$0.6x - 5.4 = - 0.8x + 5.8 \\ 0.6x + 0.8x = 5.8 + 5.4 \\ 1.4x = 11.2 \\ x = 8$