Question

me ayudan con estas ecuaciones doy corona no respondan si no saben porfavor :)​

Answer 1

1) 4x - 12 = 40

4x = 40 + 12
x = 52/4
x = 13


2) 2a + 122 = 300

2a = 300 - 122
a = 178/2
a = 89


3) 10v - 120 = 30

10v = 30 - 120
v = -90/10
v = -9


4) 3f + 16 = 88

3f = 88 - 16
f = 72/3
f = 24


5) 12 + 2h = 30

2h = 30 - 12
h = 18/2
h = 9


6) 124 = 4x - 16

124 + 16 = 4x
140/4 = x
x = 35


7) 123 = 12e -21
123 + 21 = 12e
144/12 = e
e = 12


8) 7x - 12 = 98

7x = 98 + 12
x = 110/7
x = 15.714


9) r/3 = 44 + 11

r/3 = 55
r = (55) 3
r= 165


10) r/7 = 3 + 4

r/7 = 7
r = (7)7
r = 49