Question

1) Resolva as equações.

a) 4x-10=2x+2
b)4x-7=8x-2
c)2x+1=4x-7
d)16x-1=12x+3
e)3x-2=4x+9

Answer 1

a) 4x - 10 = 2x + 2

4x - 2x = 2 + 10
2x = 12
x = 12/2
x = 6
.
.
.
b) 4x - 7 = 8x - 2

4x - 8x = -2 + 7
-4x = 5
x = 5/-4
.
.
.
c) 2x + 1 = 4x - 7

2x - 4x = -7 - 1
-2x = -8
x = -8/-2
x = 4
.
.
.
d) 16x - 1 = 12x + 3

16x - 12x = 3 + 1
4x = 4
x = 4/4
x = 1
.
.
.
e) 3x - 2 = 4x + 9

3x - 4x = 9 + 2
-x = 11 . (-1)
x = -11





★Espero ter ajudado!

Answer 2

Olá!!!

a) 4x - 10 = 2x + 2
4x - 2x = 2 + 10
2x = 12
x = 12/2
x = 6

S = { 6 }

b) 4x - 7 = 8x - 2
4x - 8x = - 2 + 7
- 4x = 5
x = 5 / - 4

S = { - 5/4 }

c) 2x + 1 = 4x - 7
2x - 4x = - 7 - 1
- 2x = - 8
x = - 8 / - 2
x = 4

S = { 4 }

d) 16x - 1 = 12x + 3
16x - 12x = 3 + 1
4x = 4
x = 4 / 4
x = 1

S = { 1 }

e) 3x - 2 = 4x + 9
3x - 4x = 9 + 2
- x = 11
x = - 11

S = { - 11 }

Espero ter ajudado....