Question

B) x+5=12
C) 3x-4=8
D) ×-5=2×-8
E) 2×+2=×+4

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Answer 1

B ) X + 5 = 12

X = 12 — 5

X = 7

C ) 3x — 4 = 8

3x = 8 + 4

3x = 12

x = 12/3

x = 4

D ) X — 5 = 2x — 8

X — 2x = —8 + 5

—X = —3

X = 3

E ) 2x + 2 = X + 4

2x — X = 4 — 2

X = 2

:::::boa interpretação:::::

Answer 2

B) × + 5 = 12

× = 12 - 5

× = 7

C) 3x - 4 = 8

3x = 8 + 4

3x = 12

x = 12 ÷ 3

x = 4

D) x - 5 = 2x - 8

x - 2x = -8 + 5

-1x = -3

x = -3 ÷ -1

x = 3

E) 2x + 2= x + 4

2 x - x = 4 -2

1x = 2

x = 2÷1

x =2