1)
[tex]17 + x = 64[/tex]
[tex]x = 64 - 17[/tex]
[tex]x = 47[/tex]
2)
[tex]x - 3.5 = 6.14[/tex]
[tex]x = 6.14 + 3.5[/tex]
[tex]x = 9.64[/tex]
3)
[tex]x \div 5 = 50[/tex]
[tex]x = 50 \times 5[/tex]
[tex]x = 250[/tex]
4)
[tex]4x - 9 = 47[/tex]
[tex]4x = 47 + 9[/tex]
[tex]4x = 56[/tex]
[tex]x = 56 \div 4 = 14[/tex]
5)
[tex]2x + 18 = 12[/tex]
[tex]2x = 12 - 18[/tex]
[tex]2x = - 6[/tex]
[tex]x = ( - 6) \div 2 = - 3[/tex]
6)
[tex]3(x + 7) = 36[/tex]
[tex]3x + 21 = 36[/tex]
[tex]3x = 36 - 21[/tex]
[tex]3x = 15[/tex]
[tex]x = 15 \div 3 = 5[/tex]
