Question

28 = -4(d − 79) + 100 I know how to do these, but I just don't want to risk my IXL percent going down... Thanks! (solve for d)

Answer 1

Explanation:

28=-4 (d-79)+100

28=-4d+316+100

4d=316+100-28

4d=388 (divide both side by 4)

d=97

Answer 2

D=97

Explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.