Question

resolva as equações

a) x+4=-3

b)-4=2-3x

c)8x-6=6x

d)2×+5=12

e)3x+2=x+4

f)4y-4=3y+15

g)x-7=4+10x

h)7y+4=3y+5

i)t=8-2t

j)4+12x=10x-14

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Answer 1

Resposta:

olá!!!

Explicação passo-a-passo:

a)x+4=-3

x=-3-4

x=-7

b)-4=2-3x

3x=2+4

3x=6

x=6/3

x=2

c)8x-6=6x

8x-6x=6

2x=6

x=6/2

x=3

d)2x+5=12

2x=12-5

2x=7

x=7/2

e)3x+2=x+4

3x-x=4-2

2x=2

x=2/2

x=1

f)4y-4=3y+15

4y-3y=15+4

1y=19

y=19/1

y=19

g)x-7=4+10x

x-10x=4+7

-9x=11

x=11/-9>>>>.(-1)

x=11/9

h)7y+4=3y+5

7y-3y=5-4

4y=1

y=1/4

i)t=8-2t

t+2t=8

3t=8

t=8/3

j)4+12x=10x-14

12x-10x=-14-4

2x=-18

x=-18/2

x=-9

bons estudos!!!