Group our variables 2r and 3r subtract 3r from both sides 2r + 39 - 3r = 3r + 10 - 3r
Cancel 3r on the right side:
-r + 39 = 10
Group constants
Group our constants 39 and 10. subtract 39 from both sides -r + 39 - 39 = 10 - 39
Cancel 39 on the left side:
-r = -29
Divide each side of the equation by -1
-1r
-1
=
-29
-1
r = 29
Final Answer
r = 29
What is the Answer?
r = 29
How does the Equation and Inequalities Calculator work?
Free Equation and Inequalities Calculator - Solves an equation or inequality with 1 unknown variable and no exponents as well as certain absolute value equations and inequalities such as |x|=c and |ax| = c where a and c are constants. Solves square root, cube root, and other root equations in the form ax^2=c, ax^2 + b = c. Also solves radical equations in the form asqrt(bx) = c. Also solves open sentences and it will solve one step problems and two step equations. 2 step equations and one step equations and multi step equations This calculator has 1 input.
What 3 formulas are used for the Equation and Inequalities Calculator?
One Step Equations (Division):
cx = b
x = b/c
One Step Equations (Addition):
x + c = b
x = b - c
One Step Equations (Subtraction):
x - c = b
x = b + c
