Question

За + 2(a - 9) = 6- (2а - 3).
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Answer 1

✎Given,

We need to solve this linear equation in a -

$3a + 2(a - 9) = 6 - (2a - 3)$

✎STEP 1

$\implies 3a + 2a - 18 = 6 - 2a + 3$

✎STEP 2

$\implies 3a + 2a + 2a = 18 + 6 + 3$

✎STEP 3

$\implies 7a = 27$

Now, dividing throughout by 7,we get,

$\implies \frac{7a}{7} = \frac{27}{7} \\ \implies a = \frac{27}{7}$

Therefore,the value of a is 27/7.

WHAT IS A LINEAR EQUATION?

Linear equation is an equation between or one variable that gives a straight line when plotted on a graph.

Usually,there are two types of linear equations :

• Linear Equation in One Variable- The linear equation which involves a single variable (e.g. x ).
• Linear Equation in Two Variable- The linear equation which involves two different variables, where the value of the two variables can be different or same (e.g. x and y).

Answer 2

Answer:

heya mate ☺

$3a + 2(a - 9) = 6 - (2a - 3) \\ = > 3a + 2a - 18 = 6 - 2a + 3 \\ = > 5a - 18 = 9 - 2a \\ = > 5a + 2a = 9 + 18 \\ = > 7a = 27 \\ = > a = 27 \div 7 \\ = > a = 3.857$

✌ hope it helps u ✌