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4x+9<21
Move all the constants (numbers) to the right, using the opposite operation:
4x<21-9
4x<12
Divide both sides by 4 to isolate x:
x<3
<h2>Therefore, x<3 ✔︎</h2>
Hope this helps!
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Answer:
357 = 51d
Step-by-step explanation:
17/d = 51/21
Using cross products
17*21 = 51*d
357 = 51d
solving
357/51 = 51d/51
7 =d
It would be 48 breaths, because there are sixty seconds in a minute, and she breathed 24 times per minute.
Answer:
One example is the equation:
2x + 6 = 4x/2 + 12/2
To solve this, we need to transpose like terms to the same side.
2x - 4x/2 = 12/2 - 6
2x - 2x = 6 - 6
0 = 0
Since both sides are zero, it means that the equation has infinite number of solutions.
Step-by-step explanation: