Question

3*а-(40-13)=3; (98-56):b=24:4

Answer 1

3*а-(40-13)=3
3*а-27=3
3*а=3+27
3*а=30
а=30:3
а=10

(98-56):b=24:4
(98-56):b=6
42:b=6
b=42:6
b=7

Answer 2

Let's solve the equations step by step:

1. 3*а - (40-13) = 3

First, let's simplify the expression inside the parentheses:

40 - 13 = 27

Now, the equation becomes:

3*а - 27 = 3

Next, let's isolate the variable 'а' by moving the constant term to the other side:

3*а = 3 + 27

3*а = 30

Finally, divide both sides by 3 to solve for 'а':

а = 30 / 3

а = 10

So the solution for the first equation is а = 10.

2. (98-56) : b = 24 : 4

Let's first simplify the expressions inside the parentheses and on the right-hand side:

98 - 56 = 42

24 : 4 = 6

Now, the equation becomes:

42 : b = 6

To solve for 'b,' we can multiply both sides by 'b':

42 = 6 * b

Next, divide both sides by 6 to solve for 'b':

b = 42 / 6

b = 7

So the solution for the second equation is b = 7.

To summarize:

• а = 10
• b = 7