If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying 11r + 15 = 2r2 Reorder the terms: 15 + 11r = 2r2 Solving 15 + 11r = 2r2 Solving for variable 'r'. Combine like terms: 2r2 + -2r2 = 0 15 + 11r + -2r2 = 0 Begin completing the square. Divide all terms by -2 the coefficient of the squared term: Divide each side by '-2'. -7.5 + -5.5r + r2 = 0 Move the constant term to the right: Add '7.5' to each side of the equation. -7.5 + -5.5r + 7.5 + r2 = 0 + 7.5 Reorder the terms: -7.5 + 7.5 + -5.5r + r2 = 0 + 7.5 Combine like terms: -7.5 + 7.5 = 0.0 0.0 + -5.5r + r2 = 0 + 7.5 -5.5r + r2 = 0 + 7.5 Combine like terms: 0 + 7.5 = 7.5 -5.5r + r2 = 7.5 The r term is -5.5r. Take half its coefficient (-2.75). Square it (7.5625) and add it to both sides. Add '7.5625' to each side of the equation. -5.5r + 7.5625 + r2 = 7.5 + 7.5625 Reorder the terms: 7.5625 + -5.5r + r2 = 7.5 + 7.5625 Combine like terms: 7.5 + 7.5625 = 15.0625 7.5625 + -5.5r + r2 = 15.0625 Factor a perfect square on the left side: (r + -2.75)(r + -2.75) = 15.0625 Calculate the square root of the right side: 3.881043674 Break this problem into two subproblems by setting (r + -2.75) equal to 3.881043674 and -3.881043674.Subproblem 1
r + -2.75 = 3.881043674 Simplifying r + -2.75 = 3.881043674 Reorder the terms: -2.75 + r = 3.881043674 Solving -2.75 + r = 3.881043674 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + r = 3.881043674 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + r = 3.881043674 + 2.75 r = 3.881043674 + 2.75 Combine like terms: 3.881043674 + 2.75 = 6.631043674 r = 6.631043674 Simplifying r = 6.631043674Subproblem 2
r + -2.75 = -3.881043674 Simplifying r + -2.75 = -3.881043674 Reorder the terms: -2.75 + r = -3.881043674 Solving -2.75 + r = -3.881043674 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '2.75' to each side of the equation. -2.75 + 2.75 + r = -3.881043674 + 2.75 Combine like terms: -2.75 + 2.75 = 0.00 0.00 + r = -3.881043674 + 2.75 r = -3.881043674 + 2.75 Combine like terms: -3.881043674 + 2.75 = -1.131043674 r = -1.131043674 Simplifying r = -1.131043674Solution
The solution to the problem is based on the solutions from the subproblems. r = {6.631043674, -1.131043674}
| 30-x=1/2x+12 | | 8.84r+35.36=70.72 | | x+=4 | | X^2=12x-35 | | 1.4-2.8=d | | x-(29-x)=5 | | 5(x-1)+61=-2x | | 499=2+7(8x+7) | | 5+6x=8x-1 | | 108=-3(-4n-4) | | 30-x=3(x)+2 | | -6(-4k-2)-6k=84 | | -5n-8(1+7n)=-9 | | 3(x+5)+4=1-2 | | -7(1-5n)=273 | | 4x^2+19=5 | | x+(x*.2)=1644 | | x+1=3(x-5) | | -4.7g=28.2 | | -47g=28.2 | | 0.16-4.5h=0.5 | | 6/7d=3/7 | | 3/7d | | 6x^2+13x+11=0 | | 14x+x^2=480 | | 0.16=0.2 | | 1-3x+8= | | .16=0.2 | | -7(8a+4)= | | -(3n+5)= | | (-8)^1/3 | | (x+7)2=64 |