Question

Sa se rezolve ecuatiile:
7x - 11 = 66
8 - 3x = -6
-4 + x = -x
27 - x = 34
5x - 6 = 2x
Va rooooog!!!!

Answer 1

$7x - 11 = 66$

$7x = 66 + 11$

$7x = 77 \: | \div 7$

$x = 11$

$8 - 3x = - 6$

$- 3x = - 6 - 8$

$- 3x = - 14 \: | \times ( - 1)$

$3x = 14$

$x = \frac{14}{3}$

$- 4 + x = - x$

$x + x = 4$

$2x = 4 \: | \div 2$

$x = 2$

$27 - x = 34$

$- x = 34 - 27$

$- x = 7 \: | \times ( - 1)$

$x = - 7$

$5x - 6 = 2x$

$5x - 2x = 6$

$3x = 6 \: | \div 3$

$x = 2$

Answer 2

1. 7x-11=66
7x=77
x=11
2.8-3x=-6
3x=14
x=4,(6)
3.-4+x=-x
-4=-2x
x=2
4.27-x=34
x=-7
5.5x-6=2x
6=3x
x=2