Question

GENTE POR FAVOR E PRA AMANHA - QUERO AS RESPOSTA

2x+5<-3x+40
6(x-5) -2(4x+2) > 100
7x-9<2x+16
-(8-4x-7)≤ 2x +7
2x+5 ≥ -3x + 40
6(x-5) -2 (4x+2) ≥ 80
20-(7x+4) <30
-(8-5x)≤2x+7
8x-10>2x+8
2(3x+7) < -4x +8
20-(2x+5)≤11+8x
20-2(3x+4)+2(3-7x) >2 (-x +5)-7x+9-4x

Answer 1

a) 2x+3x <40-5
$x\geq6$
b 6x-8 <100-4
$x > - 52$

c 7x-2x<16+9
$x < 5$

d 4x-2x < = 7-7+8
$x \leqslant 4$

e 2×+5> = -3×+40
2×+3×>= 40-5
5×>=35
×>=5
$x \geqslant 6$

f 6×-35-8×-4> = 80
-2> = 119
$x \leqslant \frac{199}{2}$

g 20-7×-4 <30
-7×<-14
7×>14
$x > 2$
h -8+5×<= 2x +7
3×< =15
$x \leqslant 5$

i8×-10>2×+8
6×>18
$x > 3$
j 20 -2×-5 < = 11+8×
-2×-8×< = 11 -20+5
$x \geqslant \frac{14}{10}$
l 20-6×-8+6-14×>-2×+10-7×+9-4×
-6×-14×+2×+7×+4×>10+9-20+8-6
-20×+13×>27-26
7×<-1
$x < \frac{1}{7}$

Answer 2

Resposta:

a) 2x+3x <40-5

b 6x-8 <100-4

c 7x-2x<16+9

d 4x-2x < = 7-7+8

e 2×+5> = -3×+40

2×+3×>= 40-5

5×>=35

×>=5

f 6×-35-8×-4> = 80

-2> = 119

g 20-7×-4 <30

-7×<-14

7×>14

h -8+5×<= 2x +7

3×< =15

i8×-10>2×+8

6×>18

j 20 -2×-5 < = 11+8×

-2×-8×< = 11 -20+5

l 20-6×-8+6-14×>-2×+10-7×+9-4×

-6×-14×+2×+7×+4×>10+9-20+8-6

-20×+13×>27-26

7×<-1

Explicação passo a passo: