Determine a solução das equações abaixo a)3×-1=8 b)9×+2=7× c)3-1=5x d)11x+17=10x+13 e)3x-11=×-11 f)x+7x-2x=96+2x g)5x+2=11 h)4x-12=x i)x+6=0,5x j)8x-7=2x+5 k)5x+21=10x-19 l)7x+23-x= m)10+( x-2)=5-(x-4) n)2x+(5-x)=3-3x+6 q)4 (x-2)+3 (2x+2)=-5 (2-x r)x+3 (x-1)-2-3 (x-3)=0 s)6x-4 (x-5)-(5-3x)=0 t)3x-(x+1)-1=-x+4 (2-x)
Soluções para a tarefa
Explicação passo-a-passo:
A)
3x — 1 = 8
3x = 8+1
3x = 9
x = 9/3
x = 3
B)
9x + 2 = 7x
9x—7x = —2
2x = —2
x = —2/2
x = —1
C)
3—1 = 5x
5x = 2
x = 2/5
D)
11x + 17 = 10x + 13
11x — 10x = 13—17
x = —4
E)
3x — 11 = x — 11
3x — x = —11+11
2x = 0
x = 0/2
x = 0
F)
x+7x—2x = 96 + 2x
6x — 2x = 96
4x = 96
x = 96/4
x = 24
G)
5x + 2 = 11
5x = 11—2
5x = 9
x = 9/5
H)
4x — 12 = x
4x—x = 12
3x = 12
x = 12/3
x = 4
I)
x + 6 = 0,5x
x — 0,5x = —6
0,5x = -6
x = -6/0,5
x = -12
J)
8x — 7 = 2x + 5
8x—2x = 5+7
6x = 12
x= 12/6
x = 2
k)
5x + 21 = 10x — 19
5x — 10x = —19 — 21
—5x = —40
x = 40/5
x = 8
L)
7x + 23 — x = 0
6x = —23
x = -23/6
M)
10+(x—2)=5—(x —4)
10x + x — 2 = 5 — x + 4
11x + x = 9+2
12x = 11
x = 11/12
N)
2x+(5—x) = 3—3x+6
2x+5—x = —3x — 3
x + 3x = —3—5
4x = —8
x = —8/4
x = —1
O)
4(x—2)+3(2x+2) = —5(2—x)
4x—8+6x+6 = -10+5x
10x—5x = —10+2
5x = -8
x = -8/5
R)
x+3(x—1)—2—3(x—3)=0
x+3x—3—2—3x+9=0
4x—3x = 5—9
x = —4
S)
6x—4(x—5)—(5—3x)=0
6x—4x+20—5+3x = 0
2x+3x = —15
5x = —15
x = —15/5
x = —3
T)
3x—(x+1) —1=—x+4(2-x)
3x — x — 1 — 1= —x + 8— 4x
2x—2 = —5x +8
2x+5x = 8+2
7x = 10
x = 10/7
Espero ter ajudado bastante!)
Resposta:
Abaixo
Explicação passo-a-passo:
A)
3x — 1 = 8
3x = 8+1
3x = 9
x = 9/3
x = 3
B)
9x + 2 = 7x
9x—7x = —2
2x = —2
x = —2/2
x = —1
C)
3—1 = 5x
5x = 2
x = 2/5
D)
11x + 17 = 10x + 13
11x — 10x = 13—17
x = —4
E)
3x — 11 = x — 11
3x — x = —11+11
2x = 0
x = 0/2
x = 0
F)
x+7x—2x = 96 + 2x
6x — 2x = 96
4x = 96
x = 96/4
x = 24
G)
5x + 2 = 11
5x = 11—2
5x = 9
x = 9/5
H)
4x — 12 = x
4x—x = 12
3x = 12
x = 12/3
x = 4
I)
x + 6 = 0,5x
x — 0,5x = —6
0,5x = -6
x = -6/0,5
x = -12
J)
8x — 7 = 2x + 5
8x—2x = 5+7
6x = 12
x= 12/6
x = 2
k)
5x + 21 = 10x — 19
5x — 10x = —19 — 21
—5x = —40
x = 40/5
x = 8
L)
7x + 23 — x = 0
6x = —23
x = -23/6
M)
10+(x—2)=5—(x —4)
10x + x — 2 = 5 — x + 4
11x + x = 9+2
12x = 11
x = 11/12
N)
2x+(5—x) = 3—3x+6
2x+5—x = —3x — 3
x + 3x = —3—5
4x = —8
x = —8/4
x = —1
O)
4(x—2)+3(2x+2) = —5(2—x)
4x—8+6x+6 = -10+5x
10x—5x = —10+2
5x = -8
x = -8/5
R)
x+3(x—1)—2—3(x—3)=0
x+3x—3—2—3x+9=0
4x—3x = 5—9
x = —4
S)
6x—4(x—5)—(5—3x)=0
6x—4x+20—5+3x = 0
2x+3x = —15
5x = —15
x = —15/5
x = —3
T)
3x—(x+1) —1=—x+4(2-x)
3x — x — 1 — 1= —x + 8— 4x
2x—2 = —5x +8
2x+5x = 8+2
7x = 10
x = 10/7
Espero ter ajudado bastante!)