178,447 views
40 votes
40 votes
How do I solve for
x/2>=-4 ?

User Marian Polacek
by
2.5k points

1 Answer

27 votes
27 votes

Answer:

Rearrange:

Rearrange the equation by subtracting what is to the right of the greater equal sign from both sides of the inequality :

x/2-(-4)≥0

Step by step solution :

STEP1:

x Simplify — 2

Equation at the end of step1:

x — - -4 ≥ 0 2

STEP2:Rewriting the whole as an Equivalent Fraction

2.1 Subtracting a whole from a fraction

Rewrite the whole as a fraction using 2 as the denominator :

-4 -4 • 2 -4 = —— = —————— 1 2

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:

x - (-4 • 2) x + 8 ———————————— = ————— 2 2

Equation at the end of step2:

x + 8 ————— ≥ 0 2

STEP3:

3.1 Multiply both sides by 2

Solve Basic Inequality :

3.2 Subtract 8 from both sides

x ≥ -8

Inequality Plot :

3.3 Inequality plot for

0.500 x + 4.000 ≥ 0

One solution was found :

x ≥ -8

User GJDK
by
2.5k points