7(2b – 5) + 3 = 10
when doing algebra always remember PEMDAS..(Please Excuse My Dear Aunt Sally) know as Parenthesis, Expontent, Multiplication, Division, Addition, Subtraction
step 1: get rid of parenthesis
Multiply 7 by each number in Parenthesis.. 14b  35
now the problem should look like: 14b  35 + 3 =10
Step 2: adding on the same side of the equation
isolate the problem will read as: (35 + 3) negative plus a positive means subtract therefore the answer will be 32
now the problem will read as 14b  32 = 10
step 3: moving tumblers to the side of the equation and changing the ssign now
32 becomes 32
Therefore add 32 + 10 = 42
the problem reads 14b = 42
Step 4: isolate lithe letter by dividing
42/14 = 3
b = 3
1/22/2013

Tiffany W.
Comments
7(2b  5) + 3 = 10; or, distributing (removing parentheses), 14b  7*5 + 3 = 10; or, 14b  35 + 3= 10; or, 14b  32 = 10; then add 32 to each side of the equation > 14b = 42; then divide each side of equation by 14 > b = 42/14 = 21/7 = 3;