Question
Question: How do you solve \(4x-2<10?\)...
How do you solve 4x−2<10?
Solution
In the given problem 4x−2<10 write ′=′ equal to one the place of ′<′ less than symbol.
Then solve the modified equation. Add ′2′ on both sides i.e. left side and right side. And now divide both sides by ′4′ and at least replace ′=′ equal sign by less than ′<′ sign.
Complete step by step solution: As per the given question,
x−2<10 given equation. Write ′=′ equal to one the place of ′<′ less than symbol. Therefore the modified equation will be this form.
4x−2=10
Add ′2′ on both sides i.e. left side and right side.
4x−2+2=10+2
Here, on the left side ′−2′ and ′+2′ will get canceled.
∴4x=12
′4′ which is in multiplication with ′x′ shift to right side and the multiplication get converted into division.
x=412
As you divide 12 by 4.
The value of x will be, as 4×3=12
x=3...(i)
Again replace ′=′ sign by ′<′ less than sign, in equation (i)
∴x<3
In this way you can solve 4x−2<10
Additional Information:
Linear equation: An equation for a straight line is called a linear equation. The general representation of the straight line equation is y=mx+b, where m is slope of line and b is the y-intercept. Linear equations are those equations that are of the first order. These equations are defined for lines in the coordinate system. The number ′m′ and ′b′ give the slope of the line (m) and the value of y when x is 0(b). The value of y-intercept because (0,y) is the point at which the line crosses the y-axis.
Note:
Replace ′<′ by ′=′ equal to sign in the given linear equation. Five forms of linear equation:
(1) General form
(2) Slope intercept form
(3) Point form
(4) Intercept form
(5) Two point form.