Solution - Adding, subtracting and finding the least common multiple
Step by Step Solution
Rearrange:
Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :
2/5*x+2-(1/5-2*x)<0
Step by step solution :
Step 1 :
1
Simplify —
5
Equation at the end of step 1 :
2 1
((— • x) + 2) - (— - 2x) < 0
5 5
Step 2 :
Rewriting the whole as an Equivalent Fraction :
2.1 Subtracting a whole from a fraction
Rewrite the whole as a fraction using 5 as the denominator :
2x 2x • 5
2x = —— = ——————
1 5
Equivalent fraction : The fraction thus generated looks different but has the same value as the whole
Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator
Adding fractions that have a common denominator :
2.2 Adding up the two equivalent fractions
Add the two equivalent fractions which now have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
1 - (2x • 5) 1 - 10x
———————————— = ———————
5 5
Equation at the end of step 2 :
2 (1 - 10x)
((— • x) + 2) - ————————— < 0
5 5
Step 3 :
2
Simplify —
5
Equation at the end of step 3 :
2 (1 - 10x)
((— • x) + 2) - ————————— < 0
5 5
Step 4 :
Rewriting the whole as an Equivalent Fraction :
4.1 Adding a whole to a fraction
Rewrite the whole as a fraction using 5 as the denominator :
2 2 • 5
2 = — = —————
1 5
Adding fractions that have a common denominator :
4.2 Adding up the two equivalent fractions
2x + 2 • 5 2x + 10
—————————— = ———————
5 5
Equation at the end of step 4 :
(2x + 10) (1 - 10x)
————————— - ————————— < 0
5 5
Step 5 :
Step 6 :
Pulling out like terms :
6.1 Pull out like factors :
2x + 10 = 2 • (x + 5)
Adding fractions which have a common denominator :
6.2 Adding fractions which have a common denominator
Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:
2 • (x+5) - ((1-10x)) 12x + 9
————————————————————— = ———————
5 5
Step 7 :
Pulling out like terms :
7.1 Pull out like factors :
12x + 9 = 3 • (4x + 3)
Equation at the end of step 7 :
3 • (4x + 3)
———————————— < 0
5
Step 8 :
8.1 Multiply both sides by 5
8.2 Divide both sides by 3
8.3 Divide both sides by 4
x+(3/4) < 0
Solve Basic Inequality :
8.4 Subtract 3/4 from both sides
x < -3/4
Inequality Plot :
8.5 Inequality plot for
2.400 X + 1.800 < 0
One solution was found :
x < -3/4How did we do?
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