Question

Equações:
b) 5 (2x - 1 ) - 2 (x + 4 ) = 0
c) 2 (y - 1 ) + 3 (y - 2 ) = - 23
d) 6x - 7 (1 - x ) - (10x + 4 ) = 1

Answer 1

b) 5 (2X-1) -2 (X+4)=0
5X-2 5X=0
5X+5X=0+2
10X=2
X=10÷2
X=5

c) 2 (Y-1) +3 (Y-2) = -23
2Y+3 Y= -23
2Y+Y = -23-3
3Y= -26
Y= -26÷3 → Y= -8,6