Question

X+(3x+10-4)+(3x+ 10)=72

Answer 1

x+(3x+10-4)+(3x+ 10)=72

Quit parenthesis:

x+3x+10-4+3x+10=72

Combine like terms:

x+3x+3x+10-4+10=72

7x +16 =72

Subtract 16 from both sides of the equation:

7x+16-16 = 72-16

7x= 56

Finally divide both sides by 7:

7x/7 =56/7

x= 8