Question

calcule: a) 2x+5>12
b) x+9<-2x+3
c) 2(x-5)-3>6x+2
d) x+5>13

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Answer 1

a)2x+5>12

2x>12-5

2x>7

x>7/2

b)2 (x-5)-3>6x+2

2×-10-3>6x+2

2x-6x>2+10+3

-4x>15

x>-4/15

c)x+5>13

x>13-5

x>8