Question

Please help me do this class 7 math​

Answer 1

Step-by-step explanation:

Solution :

(a) 5 - 3(5x + 2) = 4 (7 - 3x) + 1

=> 5 - 15x - 6 = 28 - 12x + 1

=> -1 - 15x = 29 - 12x

=> -15x + 12x = 29 + 1

=> -3x = 30

=> x = 30/-3

=> x = -10

$(b) \frac{6x + 1}{3} + 1 = \frac{x - 3}{6}$

$= > \frac{6x + 1 + 3}{3} = \frac{x - 3}{6}$

$= > 6(6x + 1 + 3) = 3(x - 3)$

$= > 36x + 6 + 18 = 3x - 9$

$= > 36x + 24 = 3x - 9$

$= > 36x - 3x = - 9 - 24$

$= > 33x = - 33$

$= > x = \frac{ - 33}{33}$

$= > x = - 1$