Question

2- Resolva as equações: c) a) 4x-1=3(x - 1) b) 3(x - 2) = 2x - 4 2(x - 1) = 3x + 4 d) 3(x-1)-7=15 e) 7(x-4) = 2x - 3 f) 3(x - 2) = 4(3-x) 3(3x - 1) = 2(3x + 2) 7(x - 2) = 5(x+3) 3(2x - 1) = -2(x+3) g) h) i) j) 5x-3(x+2) = 15 k) 2x + 3x + 9 = 8(6-x) 1) 4(x + 10) -2(x - 5) = 0 m) 3(2x + 3) - 4(x - 1) = 3 n) 7(x-1)-2(x - 5)=x-5 o) 2(3-x) = 3(x-4) +15 p) 3(5-x) - 3(1-2x) = 42 q) (4x+6)-2x = (x-6) +10+14 (x-3) - (x + 2) + 2(x-1)-5=0 3x-2(4x - 3) = 2-3(x-1) 3(x-1) - (x-3) + 5(x - 2) = 18 5(x-3) - 4(x+2) = 2 + 3(1-2x) r) s) t) u)

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Answer 1

Vamos lá.

a) 4x-1=3(x - 1) , x = -2

b) 3(x - 2) = 2x - 4 , x = 2

c) 2(x - 1) = 3x + 4 , x = -6

d) 3(x-1)-7=15 , x = 25/3

e) 7(x-4) = 2x - 3 , x = 5

f) 3(x - 2) = 4(3-x) , x = 18/7

g) 3(3x - 1) = 2(3x + 2) , x = 7/3

h) 7(x - 2) = 5(x+3) , x = 29/2

i) 3(2x - 1) = -2(x+3) , x = -3/8

g) 5x-3(x+2) = 15 , x = 21/2

k) 2x + 3x + 9 = 8(6-x) , x = 3

m) 3(2x + 3) - 4(x - 1) = 3 , x = -5

n) 7(x-1)-2(x - 5)=x-5 ,x = -2

o) 2(3-x) = 3(x-4) +15 , x = 3/5

p) 3(5-x) - 3(1-2x) = 42 , x = 10

q) (4x+6)-2x = (x-6) +10+14 , x = 12

r) (x-3) - (x + 2) + 2(x-1)-5=0 , x = 6

s) 3x-2(4x - 3) = 2-3(x-1) , x = 1/2

t) 3(x-1) - (x-3) + 5(x - 2) = 18 , x = 4

u) 5(x-3) - 4(x+2) = 2 + 3(1-2x) , x = 4