Question

Oii gente preciso de ajuda nessas equações:

(1) x+3=1

(2) x-2=1

(3) 8+x=7

(4) 5-x=4

(5) 4x=20

(6) 3x=42

(7) 5x=100

(8) x-2=10

(9) x-5=8

(10) x-9=7

Answer 1

(1) X+3=1
X=1-3
X=-2

(2)X-2=1
X=1+2
X=3

(3)8+X=7
X=7-8
X=-1

(4)5-x=4
-X=4-5
-X=-1 . (-1)
X=1

(5)4x=20
X=20/4
X=5

(6)3x=42
X=42/3
X=13

(7)5x=100
X=100/5
X=20

(8)x-2=10
X=10+2
X=12

(9)X-5=8
X=8+5
X=13

(10)X-9=7
X=7+9
X=16

Answer 2

(1) x+3=1

x=1-3

x=-2

(2)x-2=1

x=2+1

x=3

(3)8+x=7

x=7-8

x=-1

(4) 5-x=4

x=4+5

x=9

(5) 4x=20

x=20÷4

x=5

(6) 3x=42

x=42÷3

x=14

(7)5x=100

x=100÷5

x=20

(8)x-2=10

x=10+2

x=12

(9)x-5=8

x=8+5

x=13

(10)x-9=7

x=7+9

x=16