Question

Vou dar a melhor reposta pra quem responder primeiro - 50 pontos!
b) -10-20:(+4)
c) (+30):(-6)+(-18):(+3)
d) 7:(-7)+2X(-6)+11
e) (-36):(-4)+3X(-3)
f) 35-6X(+6)+(+54):(-6)
g) 2+(-75):(-5)-4X(-1)
h) 4X(-20)-(-120):(+2)+28:(-7)


7.
a) (-9)²-(+5)X(+16)
b) (-2) elevado a 4 :(+16)X(-1) elevado a 7
c) (-6)²-(-7)²+13°
d) 5² - (-3)³+(-4)²
e) 4X(-5)³+(-4)²
f) 11² -4X(-5)²+10°
g) 17 -3 X(-2)²-(-6)²X(-1) elevado a 7
h) 7X(-2)²-5(-2)³-10²

Rápido por favor é pra agora a atividade

Answer 1

b) -10-20:(+4)
-30:4=-7,5

c) (+30):(-6)+(-18):(+3)
-5+(-6)
-5-6=-11

d)7:(-7)+2x(-6)+11
-1+2x-6+11
2x=+7-11
2x=-4
x=-4:2=-2

e)(-36):(-4)+3x(-3)
+9+3x-3
3x+6=0
3x=-6
x=-6:3
x=-2

f)35-6x(+6)+(+54):(-6)
35-6x+6-9
32-6x
-6x=-32
x=-32:-6
x=~+5,33

g)2+(-75):(-5)-4x(-1)
2+(+15)-4x-1
16-4x
-4x=-16
x=-16:-4
x=+4

h)4x(-20)-(-120):(+2)+28:(-7)
4x-20-(-60)-4
4x-20+60-4
4x36
4x=-36
x=-36:4
x=-9

7.

a)(-9)*2-(+5)x(+16)
+81-5+16x
76+16x
16x=-76
x=-76:16
x=-4,75

b) (-2)*4:(+16)x(-1)*7
+16:(16)x-1
1-x
x=+1

c) (-6)*2-(-7)*2+13*0
+36-(+49)+1
37-49=-12

d) 5*2-(-3)*3+(-4)*2
25-(-27)+(+16)
25+27+16=68

e)4x(-5)*3+(-4)*2
4x-125+(+16)
4x-109
4x=109
x=109:4
x=27,25

f)11*2-4x(-5)*2+10*0
121-4x(+25)+1
121-4x+26
147-4x
-4x=-147
x=-147:-4
x=+36,75

g) 17-3x(-2)*2-(-6)*2x(-1)*7
17-3x(+4)-(+36)x-1
17-3x+4-36-x
-19-4x
-4x=19
x=19:-4
x=-4,75

h)7x(-2)*2-5(-2)*3-10*2
7x(+4)-5(-8)+100
7x-9+100
7x+91
7x=-91
x=-91:7
x=-13

Espero ter ajudado :)