5r = 25 is a linear equation in one variable, r. The solution is r = 5.
5r + 8 = -12Subtract 8 from each side:5r = -20Divide each side by 5:r = -4
-7p + 5r - 6p + 3r = -7p - 6p + 5r + 3r = -(7 + 6)p + (5 + 3)r = -13p + 8r
58
r(r + 5)
5r = 25 is a linear equation in one variable, r. The solution is r = 5.
5r + 8 = -12Subtract 8 from each side:5r = -20Divide each side by 5:r = -4
-5r + 8r + 5 = 3r +5
First, translate it into an algebraic equation:4 + 5r = -11Then we subtract 4 from both sides:4 + 5r - 4 = -11 - 4Now we can simplify our numbers together:(4 - 4) + 5r = -11 - 40 + 5r = -155r = -15Now we divide both sides by 5:(5r / 5) = (-15 / 5)r = -3
5 plus 25 equals 60. Need to solve for 5 plus 25 equals ?: 2 plus 10 equals 24 is equivalent to 2 × (1 plus 5) equals 2 × (12); and 3 plus 15 equals 36 is equivalent to 3 ×(1 plus 5) equals 3 × (12); thus 5 plus 25 equals ? is equivalent to 5 × (1 plus 5) equals 5 × (12); thus ? = 5 × 12 = 60.
1)5r+7=13+2r+3r 2)5r+7=13+5r 3)5r's cancel 7=13 4)Subtract thirteen on both sides 7 =13 -13 -13 5)Answer is no solution because -6 doesn't equal to 0. -6=0 NO SOLUTION!!! Have fun with math!
-7p + 5r - 6p + 3r = -7p - 6p + 5r + 3r = -(7 + 6)p + (5 + 3)r = -13p + 8r
58
r(r + 5)
The answer to -5 plus -20 equals -25. This is taught in class.
r=12 Work: 5r-20=40 5r=60 r=12
3+10-r+6r = -3+9r+0 13+5r = -3+9r 16 = 4r r = 4