Respostas
respondido por:
13
a) 9x - 4x = 18+2; 5x = 20; x= 20/5 ; x=4
b) 2x + 7x = 180 + 10 - 10; 9x = 180; x= 180/9; x=20
c)7y - y= 50+10; 6y = 60; y=60/6; y=10
d)4x+3x=10+18; 7x= 28; x = 28/7; x=4
e)2x+5x= 18-7; 7x= 11; x=11/7
f) 5x-4x= 91-77; x= 14
b) 2x + 7x = 180 + 10 - 10; 9x = 180; x= 180/9; x=20
c)7y - y= 50+10; 6y = 60; y=60/6; y=10
d)4x+3x=10+18; 7x= 28; x = 28/7; x=4
e)2x+5x= 18-7; 7x= 11; x=11/7
f) 5x-4x= 91-77; x= 14
juliagaby4:
e vou postar mais me ajudar ok
respondido por:
17
OLá.
a)9x-2=4x+18
9x-4x=18+2
5x=20
x=20/5
x=4
b)2x-10+7x+10=180
2x+7x=180-10+10
9x=180
x=180/9
x=20
c) 7y-10=y+50
7y-y=50+10
6y=60
y=60/6
y=10
d)4x-18+3x=10
4x+3x=10+18
7x=28
x=28/7
x=4
e) 2x+5x+7=18
2x+5x=18-7
7x=11
x=11/7
f) 5x-91=4x-77
5x-4x= -77+91
x=14
Espero ter ajudado.
a)9x-2=4x+18
9x-4x=18+2
5x=20
x=20/5
x=4
b)2x-10+7x+10=180
2x+7x=180-10+10
9x=180
x=180/9
x=20
c) 7y-10=y+50
7y-y=50+10
6y=60
y=60/6
y=10
d)4x-18+3x=10
4x+3x=10+18
7x=28
x=28/7
x=4
e) 2x+5x+7=18
2x+5x=18-7
7x=11
x=11/7
f) 5x-91=4x-77
5x-4x= -77+91
x=14
Espero ter ajudado.
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