Among cases of heart pacemaker malfunctions, were found to be caused by firmware, which is software programmed into the device.
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Answer:
19) n = -14
20) x = 4
21) b= -14
22) x = 2
23) x = -1
24) x = -9
Step-by-step explanation:
19) Use the distributive property to get rid of the parentheses. You will get: 20-4n = 76. So, n = -14.
20) Multiply both sides of the equation by 2 to get: -8 + x = -4. So, x = 4
21) Add 3 to both sides to get: = -1. So, b = -14
22) Use the distributive property to get rid of the parentheses. You will get: -40 - 5x = -50. Then, add 40 to both sides to get: -5x = -10. So, x = 2.
23) Use the distributive property to get rid of the parentheses. You will get: -72 = -64 + 8x. Then, add 64 to both sides to get: -8 = 8x. So, x = -1
24) Add 2 to both sides to get: = -3. So, x = -9
Hope this helps :)
The equivalent expression to is
Step-by-step explanation:
Step 1:
In sums like these, it is easier to take the common term out of the simplification.
In the expression , the common term between
and
is the term s. So we take the term s as the common factor.
So taking s out of we get
Step 2:
If we multiply a positive with a negative we get a negative. S0
So the equivalent expression to is