Respuesta :

bestrongtroopsp3i7sm
Not sure what choices you are given but
3+4x=51
-3       -3
4x=48
divide by 4 to both sides
x=12
3 + 4x = 51

step 1: subtract 3 from both side 

3 + 4x - 3 = 51 - 3
4x = 48

step 2: divide by 4 on both side

4x = 48
4x ÷ 4 = 48 ÷ 4
x = 12

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