Answer:
x=5
Step-by-step explanation:
-3(2x+7)=-51
opening bracket in the left hand side
-3.2x+(-3).7=-51
-6x-21=-51
adding 21 on both sides
-6x=-51+21
-6x=-30
dividing both sides by -6
[tex]\frac{-6x}{-6}=\frac{-30}{-6}
x=5
Hence the value of x came out to be 5
