Question

resolva as seguintes equações a ) 3x+1=12 b ) 2x-3=17 c ) x+5=0 d ) x+4=-3

Answer 1

a)3x+1=12
3x=12-1
3x=11
x=11/3

B) 2x-3=17
2x=17-3
2x=14
x=14/2
X=7
C)x+5=0
x=5
D)x+4=-3
x=-3+4
x=1

Answer 2

A)3x+1=12 3x=12-1 3x=11 X=11/3 B)2x-3=17 2x=17+3 2x=20 X=20/2 X=10 C)x+5=0 X=0-5 X=-5 D)x+4=-3 X=-3-4 X=-7