Question

resolva as equaçoes
a)7y-4=10
b)17x-1=15x+3
c)16-x=x+25

Answer 1

a) 7y - 4 = 10
7y = 10 + 4
7y = 14
y = 2

b) 17x - 1 = 15x + 3
17x - 15x = 3 + 1
2x = 4
x = 2

c) 16 - x = x + 25
-x - x = 25 - 16
-2x = 9 .(-1)
2x = 9
x = 9/2

Answer 2

7y=10+4
7y=14
y= 14/7
y=2

.

17x- 1 = 15x+ 3
17x-15x=3+1
2x=4
X=2
.

16-x=x+25
-x-x=25-16
-2x=9
x= -9/2

espero ter ajudado