Question

Determine a raiz de cada equação.
A) 2×+14=5×-1
B)3. (×-2)-1+×=13
C)5×+14-2×=26-3×
Simplifique as expressões e termos semelhantes.
A)2×+3×-6×
B)3×+2-3+2×

Answer 1

A) 2×+14=5×-1
2×- 5×=-1-14
-3×= - 15
× = -15/-3
x = 5

B)3. (×-2)-1+×=13
3× - 6 - 1 + × = 13
3× + × - 6 - 1 = 13
4× - 7 = 13
4× = 13 + 7
4× = 20
× = 20/4
× = 5

C)5×+14-2×=26-3×
3× + 3× = 26 - 14
6× = 12
× = 12/6
× = 2

Simplifique as expressões e termos semelhantes.
A)2×+3×-6×
=5× - 6×
= - ×

B)3×+2-3+2×
=5× - 1