Question

Resolva as seguintes equações:
x/3 = 20:
2x+1=5:
1-4y=9-5:

Answer 1

X/3 = 20
X = 20 x 3
X = 60

2x + 1 = 5
2x = 5 - 1
2x = 4
X = 4/2
X = 2

1 - 4y = 9-5
1-4y = 4
-4y = 4-1
-4y = 3
- y = 3/4 x (-1)
y = -3/4