Question

resolva as seguintes equações do 1° grau
me ajudem! por favor

a)×+3=8


b) ×-3=4


c)×+10=12


d)×+1=20


e)4× + 12 =0



e)2×+5=×+4


f)4× + 8 = 0


g) 2 × + 12 = 0


d) 5× - 6 = 2× + 3
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Answer 1

a)×+3=8

x = 8-3

x = 5

b) ×-3=4

x = 4 + 3

x = 7

c)×+10=12

x = 12-10

x = 2

d)×+1=20

x = 20-1

x = 19

e)4× + 12 =0

4x = -12

x = -12/4

x = -3

f)2×+5=×+4

2x - x = 4 - 5

x = -1

g)4× + 8 = 0

4x = -8

x = -8/4

x = -2

h) 2 × + 12 = 0

2x = -12

x = -12/2

x = -6

i) 5× - 6 = 2× + 3

5x - 2x = 6 + 3

3x = 9

x = 9/3

x = 3