Question

13r + 10 = 5r - 46

r=

Answer 1

13r-5r=-46-10
8r=-56
r=-56/8

Answer 2

\(13r + 10 = 5r - 46\)
\(8r = -56\)
\(-7\)

Answer 3

r = -7

Answer 4

Step by step solution :
Step 1 :


Pulling out like terms :

1.1 Pull out like factors :

8r + 56 = 8 • (r + 7)
Equation at the end of step 1 :

8 • (r + 7) = 0

Step 2 :

Solve 8•(r+7) = 0

Equations which are never true :

2.1 Solve : 8 = 0

This equation has no solution.
A a non-zero constant never equals zero.
Solving a Single Variable Equation :

2.2 Solve : r+7 = 0

Subtract 7 from both sides of the equation :
r = -7
One solution was found :
r = -7