Can you help me solve these equations please?
A:2(x+3)=10
B:3(2x-4)=18
C:4(x-5)=28
D:2(3x-4)=10
E:2(x+6)=6
F:5(2x+9)=15
A:2(x+3)=10
B:3(2x-4)=18
C:4(x-5)=28
D:2(3x-4)=10
E:2(x+6)=6
F:5(2x+9)=15
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A:2(x+3)=10
distribute
2x+6=10
2x=10-6
2x=4
x=2
B:3(2x-4)=18
distribute
6x-12=18
isolate
6x=18+12
6x=30
x=5
C:4(x-5)=28
4x-20=28
4x=28+20
4x=48
x=12
D:2(3x-4)=10
now try this
E:2(x+6)=6
now try this
F:5(2x+9)=15
10x+45=15
10x=15-45
10x=-30
x=-3
distribute
2x+6=10
2x=10-6
2x=4
x=2
B:3(2x-4)=18
distribute
6x-12=18
isolate
6x=18+12
6x=30
x=5
C:4(x-5)=28
4x-20=28
4x=28+20
4x=48
x=12
D:2(3x-4)=10
now try this
E:2(x+6)=6
now try this
F:5(2x+9)=15
10x+45=15
10x=15-45
10x=-30
x=-3
-
This is simple distribution
Here is an example in letters
a(x+c)=d
ax+ac=d
ax=d-ac
x=d-ac/a
A) 2(x+3)=10
2x+6=10
2x=4
x=2
B) 3(2x-4)=18
6x-12=18
6x=30
x=5
C) 4(x-5)=28
4x-20=28
4x=48
x=12
D) 2(3x-4)=10
6x-8=10
6x=18
x=3
E) 2(x+6)=6
2x+12=6
2x=-6
x=-3
F) 5(2x+9)=15
10x+45=15
10x=-30
x=-3
Here is an example in letters
a(x+c)=d
ax+ac=d
ax=d-ac
x=d-ac/a
A) 2(x+3)=10
2x+6=10
2x=4
x=2
B) 3(2x-4)=18
6x-12=18
6x=30
x=5
C) 4(x-5)=28
4x-20=28
4x=48
x=12
D) 2(3x-4)=10
6x-8=10
6x=18
x=3
E) 2(x+6)=6
2x+12=6
2x=-6
x=-3
F) 5(2x+9)=15
10x+45=15
10x=-30
x=-3
-
Despejar x:
ejemplo:
B:
2x-4=18/3
2x=6+4
x=10/2
X=5
En una igualdad, lo que divide, pasa multiplicando y viceversa. Lo que suma, pasa restando. Primero lo de afuera del paréntesis. Siempre antes sumas y restas que multiplicación y división.
ejemplo:
B:
2x-4=18/3
2x=6+4
x=10/2
X=5
En una igualdad, lo que divide, pasa multiplicando y viceversa. Lo que suma, pasa restando. Primero lo de afuera del paréntesis. Siempre antes sumas y restas que multiplicación y división.
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A:
2(x + 3) =10
x = 2
B:
3(2x - 4) = 18
x = 5
C:
4(x - 5) = 28
x = 12
D:
2(3x - 4) = 10
x = 3
E:
2(x + 6) = 6
x = -3
F:
5(2x + 9) = 15
x = -3
2(x + 3) =10
x = 2
B:
3(2x - 4) = 18
x = 5
C:
4(x - 5) = 28
x = 12
D:
2(3x - 4) = 10
x = 3
E:
2(x + 6) = 6
x = -3
F:
5(2x + 9) = 15
x = -3
-
A 2x+6=10
2x=4
x=2
B 6x-12=18
6x=30
x=5
C 4x-20=28
4x=48
x=12
D 6x-8=10
6x=18
x=3
E 2x+12=6
2x=-6
x=-3
F 10x+45=15
10x=-30
x=-3
2x=4
x=2
B 6x-12=18
6x=30
x=5
C 4x-20=28
4x=48
x=12
D 6x-8=10
6x=18
x=3
E 2x+12=6
2x=-6
x=-3
F 10x+45=15
10x=-30
x=-3
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a=2 b= 5 C =12 d=3 e=-3 F = -3
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A)
x = 2
x = 2