Question

Pra agora! responda as equações

Answer 1

p)6-2y+14-7y=15-4y
20-9y=15-4y
20-15=-4y+9y
5=5y
y=5/5
y=1

q)2x-4+10-5x+6x+6=0
3x+12=0
3x=12
x=12/3
x=4

r) 3x-6-1-x=13
2x-7=13
2x=13+7
x=20/2
x=10

s) x-x-1=12-3x+2
-1=14-3x
-3x=-1-14
-3x=-15
x= -15/-3
x= 5