d) (45) + (-21) + (-21) + (-14)
c) (-23) + (-35) + (+31) + (-14)
e) (-6) + (-1) + (-1) + (-4)
1) (-4) + (-5) + (+4) + (+5)
g) (+12) + (-15) - (-17) + (+14)
h) (+5) + (-1) - (+4)+ (-14) + (+15)
Answers
Answer:
simplyfi
Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :
x-45/21-(14/21)=0
Step by step solution :
STEP
1
:
2
Simplify —
3
Equation at the end of step
1
:
45 2
(x - ——) - — = 0
21 3
STEP
2
:
15
Simplify ——
7
Equation at the end of step
2
:
15 2
(x - ——) - — = 0
7 3
STEP
3
:
Rewriting the whole as an Equivalent Fraction
3.1 Subtracting a fraction from a whole
Rewrite the whole as a fraction using 7 as the denominator :
x x • 7
x = — = —————
1 7
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
(45) + (-21) + (-21) + (-14)= -11
(-23) + (-35) + (+31) + (-14)= -41
(-6) + (-1) + (-1) + (-4)= -12
(-4) + (-5) + (+4) + (+5)= 0
(+12) + (-15) - (-17) + (+14)= 28
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