Question

Determine o valor de X na equação a seguir aplicando as té nicas resolutivas
A)3-2×(X+3)=X-18
B)50+(3x-4)=2×(3X-4)+26

Answer 1

A)3-2x+6=x-18
3+18+6=x+2x
21+6=3x
27=3x
x=27/3
x=9

B)50+3x-4=6x-8+26
50-4-26+8=6x-3x
46-26+8=3x
20+8=3x
28=3x
x=28/3
x=9.33.......