Question

1. Resolva as equações:

a) 8x -7 = 2x – 8

b) 12m – 8 =24 -18m

c) m + 8 – 6m = 8 +24m

d) 6 +8m – 18 = 12m -8 + 12

e) -10 + 6x + 8 = 22 + 18x

f) -10 * 2x = 0

g) -30 +7x = -16

h) 25+10x = 75

i) 25 + x = 18 + 12

j) X + 12 = 45-14

k) X -7 = 25+18

l) 72x = 1008​

Answer 1

Explicação passo-a-passo:

a) 8×-2×=-8+7

6×=-1

×=-1/6

b) 12m+18m=24+8

20m=32

m=32/20

m=8/5

c) m-6m-24m=8-8

-5m-24m=0

-29m=0

m=0/29

d) 8m-12m=-6+18-8+12

-4m=12-8+12

-4m=4+12

-4m=16

m=16/-4

m=-4/-1

m= -4

e) 6×-18×=22-8+10

-12×=14+10

-12×=24

×=24/-12

×=2/-1

×=-2

f) ?

g) 7×=-16+30

7×=46

×=46/7

h) 10×=75-25

10×=50

×=50/10

×=5/1

×=5

i) ×=18+12-25

×=30-25

×=5

j) ×=-12+45-14

×=57-14

×= 43

k) ×=25+18+7

×=43+7

×=50

l) ×=1008-72

×= 936

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