Answer:
x = 5
Step-by-step explanation:
Given
4x - 3 = 2x + 7 ( subtract 2x from both sides )
2x - 3 = 7 ( add 3 to both sides )
2x = 10 ( divide both sides by 2 )
x = 5
C and D would be the answer
8 - {x - (5 + x)}
= 8 - {x - 5 - x}
= 8 + 5
= 13
B would be equivalent. if you simplify 6/10 you get 3/5