Question

Resolver. A) 8+ × =19 b) 6×+3=19 c) 2×+4= 3×+3 d) 2 (4-×) = 4-×+4 e) 3×-5 = 2x+1+×.

Answer 1

a)

$8+x=19\\x=19-8\\x=11$

b)

$6x+3=19\\6x=19-3\\6x=16\\x=\frac{16}{6} \\x=\frac{8}{3}$

c)

$2x+4=3x+3\\2x=3x+3-4\\2x=3x-1\\2x-3x=-1\\-x=-1\\x=1$

d)

$2(4-x)=4-x+4}\\8-4x=8-x\\8-4x+x=8\\8-3x=8\\-3x=8-8\\-3x=0\\3x=0\\x=\frac{0}{3} \\x=0$

e)

$3x-5=2x+1+x\\3x-5=3x+1\\3x=3x+1+5\\3x=3x+6\\3x-3x=6\\0=6$

Sin solucion