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Equações 1º grau simples e com parenteses
Equações 1º grau simples e com parenteses
RS77
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2 slides
Jan 15, 2012
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Jan 15, 2012
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Slide 1
Nome: ____________________________________________________Turma:______N.º____
Resolve cada uma das seguintes equações:
1) 2 3 33xx
12S
10) 3 2 1xx
2S
19) 5 7 10 3 13 12bb
2S
2) 7 2 4xx
1S
11) 0,5 3 3,5 1,5xx
0,5S
20) 0 3 2 5xx
8
3
S
3) 5 6 3 4tt
1S
12) 2 3 5aa
8S
21) 5 3 2 1 0xx
4
7
S
4) 9 3 5 4xx
2S
13) 3 1 3xx
1S
22) 4 1 3 2 7 1x x x x
0S
5) 7 10 6 5xx
15S
14) 1 3 4xx
5
4
S
23) 2 5 2 3 10x x x x
3
8
S
6) 3 8 5 16xx
1S
15) 2 1 3 10xx
11
5
S
24) 1 3 7 4 2 0xx
1
10
S
7) 4 5 4 8x x x
6S
16) 2 3 1 2xx
2
3
S
25) 0 3 1 7 10 15x x x x
14S
8) 25 3 2 2 17aa
10S
17) 2 7 3 1 5xx
0S
26) 2 1 3 7 0,1xx
1,58S
9) 14 24 10 2 30t t t
3S
18) 1 2 3xx
4
3
S
27) 2 2 0,2 1 0,5x x x x
10
37
S
Ficha de Trabalho de Matemática
Tema: Equações do 1º grau com uma incógnita 7º Ano
Slide 2
Resolve cada uma das seguintes equações com parênteses:
1) 2 5 10 4x
2S
10) 2 7 0,5 4t t t
14
3
S
19) 0,1 1 0,5 1 0,1 2,7xx
46S
2) 3 4 2 2 0a 5
8
S
11) 3 8 1 10a a a
1
3
S
20) 2 1 3 5xx 3S
3 3) 3 2 1 4 9bb 3
5
S
12) 5 2 3 0bb
6
7
S
21) 1 2 2 5x x x
9S
4) 5 2 3 5xx
1
7
S
13) 3 4 2 1 2 3x x x
11S
22) 5 2 3 7 0xx
11
2
S
5) 8 2 3 8x
3S
14) 2 1 3 2 5x x x
9
4
S
23) 4 1 2 3x x x
0S
6) 2 5 1 3 0s
4
5
S
15) 3 2 1 7 1x x x
5
8
S
24) 1 3 7 4 2 0xx 1
10
S
7) 12 1 2 1a
9
2
S
16) 3 2 3 1 0t t t 2S
25) 20 5 3 5x x x 5
8
S
8) 2 3 3t t t
3
2
S
17) 1 2 3 5t t t
1
2
S
26) 2 3 5 3 2x x x
9S
9) 1 3 1 3 2nn
9
4
S
18) 0,2 3 3 1xx
4,1S
27) 0 2 3 5 5 2xxx
21
4
S
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