Question

Resolva as equações de 1° Grau

a) 6×=2×+16
b) 2×-5=×+1
c) 2×+3=×+4
d) 5×+7=4×+10
e)3(×-2)=2×-4
f) 3/4-×/3=5/1

RESOLVA AS CONTAS PARA MIM, POR FAVOOR, É URGENTE!!!

Answer 1

A) 6x = 2x + 16
6x - 2x = 16
4x = 16
x = 16/4
x = 4

B) 2x - 5 = x + 1
2x - x = 1 + 5
x = 6

C)2x + 3 = x + 4
2x - x = 4 - 3
x = 1

D) 5x + 7 = 4x + 10
5x - 4x = 10 - 7
x = 3

E) 3 (x - 2) = 2x - 4
3x - 6 = 2x - 4
3x - 2x = -4 + (-6)
x = -10

Answer 2

A) 6x = 2x + 16
6x - 2x = 16
4x = 16
x = 16/4
x = 4

B)2x - 5 = x + 1
2x - x = 1 + 5
x = 6

C) 2x + 3 = x + 4
2x - x = 4 - 3
x = 1

D)5x + 7 = 4x + 10
5x - 4x = 10 - 7
x = 3

E) 3(x - 2) = 2x - 4
3x - 6 = 2x - 4
3x - 2x = - 4 + 6
x = 2

F)3/4 - x/3 = 5/1
3/4 • 1 - x/3 • 1 = 5/1 • 1
3/4 - x/3 = 5
3/4 • 3 - x/3 • 3 = 5 • 3
3/4 • 3/1 - x = 15
9/4 - x = 15
9/4 • 4 - x • 4 = 15 • 4
9 - 4x = 60
- 4x = 60 - 9
- 4x = 51
x = 51/-4
x = - 12,75