Question

How do you solve 2b = 3 ?

Answer 1

Hint: The given equation is a linear equation in one variable, we solve any linear equation in one variable by separating the variable and constant present in the equation. But we can see in the equation 2b = 3, we don’t have to do that. We can simply find the value of b by dividing LHS and RHS by 2.

Complete step by step solution:
The given equation in the question is 2b = 3 which is a linear equation in one variable
We can see that the variable and constants are already separated, we can find the value of b by dividing LHS and RHS by 2.
Dividing both LHS and RHS by 2 we get b = 1.5
So b = 1.5 is solution of 2b = 3

Note: The equation given in the question was a linear equation in one variable, so one equation is enough to solve it. The linear equation in one variable, we can represent the solution in a number line or in 1D coordinate system. When there are 2 unknown variables, we can represent the solution in a cartesian coordinate system or 2D system. Each equation will represent a straight line in the cartesian system. When we solve for a linear equation in 3 variables, each equation will represent a plane in 3D coordinate system and we have to represent the solution in 3D coordinate system.