Answer :
42x + 12 * 13=786
first, multiply 12 and 13. (Remember PEMDAS)
42x + 156 = 786
now subtract 156 from both sides
42x = 630
divide both sides by 42 to isolate the variable,x.
x = 15
first, multiply 12 and 13. (Remember PEMDAS)
42x + 156 = 786
now subtract 156 from both sides
42x = 630
divide both sides by 42 to isolate the variable,x.
x = 15