Answer :
7-7 (-8+x)=-14+4×
7+56-7x=-14+4x
63-7x=-14+4x
add 7x to both sides
63=-14+11x
add 14 to both sides
77=11x
divide both sides by 11
7=x
therefore 7 is x
7+56-7x=-14+4x
63-7x=-14+4x
add 7x to both sides
63=-14+11x
add 14 to both sides
77=11x
divide both sides by 11
7=x
therefore 7 is x