Question

resolva as equações de 1 grau me ajudem
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Answer 1

a)

x=15=19

x=19-15=4

b)

4b=21+15

4b=36

b=9

c)

3m=17+10

3m=27

m=9

d)

se for 9b+7=88

9b=81

b=9  

e)

Se for x/3 +3=9

x/3=9-3

x=3*6

x=18

f)

7x=56

x=56/7

x=8

Answer 2

Explicação passo-a-passo:

x+15=19

x=19-15

x=4

4b-15=21

4b=21+15

4b=36

b=36/4

b=9

3m-10=17

3m=17+10

3m=27

m=27/3

m=9

9b+7=88

9b=88-7

9b=81

b=81/9

b=9

x/3+5=9

x+15=27

x=27-15

x=12

7x=56

x=56/7

x=8