Question

By  solving the simple equation: 2y -2 = 20. which of the following is value of 'y' ?​

Answer 1

Answer:

Given equation = 2y - 2 = 20

To calculate: The value of y

Solution: The value of y = 11

Required solution:

→ 2y - 2 = 20

→ 2y = 20 + 2

→ 2y = 22

→ y = 22/2

→ y = 11

Need to remember:

• - = +
• + = -
• + + = +
• - - = +
• + - = -
• - + = -

Additional information:

• Expression that contains only a term is known as "monomial". For example, 4x² , 3xy , 82abc etc.

• Expression that contains two terms is known as "Binomial". For example, a + b , z² - y² , 5 - 3xy etc.

• Expression that contains three terms is known as "Trinomial". For example, a + b + c , 2x + 3y - 5 etc.

• An expression containing one or more terms with non zero coefficient (with variable having non negative exponent) is known to be "polynomial". For example, 2x + 3y + 7z , a + b + c + d etc. $\:$