Answer:
b = 3
Explanation:
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