r + 14 = 39 r = 25
25
25
r = 25
All you must do here is take 14 and subtract 6 from it. So r=8.
r + 14 = 39 r = 25
25
25
r = 25
All you must do here is take 14 and subtract 6 from it. So r=8.
In these types of questions, you have to try to isolate the unknown variable.14 = 2 + r - 21.Remember whenever you move ANYTHING over the equals sign, you have to make its sign opposite. Since the r is positive, and we are moving it over the equals sign we have to make it a negative sign. When we move the 14 over, it is currently positive so we make it into a negative.-r = -14 + 2 - 21-r = -12 - 21-r = -43(Eliminate the negative sign)r = 43.
a= the square of 7 A equals 28cm
90
a=\7cm;a=28cm2
the answer is r.
2.8
if r=5z and 15z =3 then r=10y