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3 years ago

9

PLS HELP I WILL MARK YOU AS BRAINLIEST ANSWER! a=5+5

2 answers:

amm18123 years ago

5 0

The answer shall be 10 because 5+ 5=10

Mekhanik [1.2K]3 years ago

4 0

Wait so it's 5 + 5 so A would be the answer to that so it would be 10

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Solve.<br> y=x - 7<br> 5+2y=7

lesantik [10]

Answer:

$\huge\boxed{x=8;\ y=1\to(8;\ 1)}$

Step-by-step explanation:

$\left\{\begin{array}{ccc}y=x-7&(1)\\5+2y=7&(2)\end{array}\right\\\\\text{Substitute (1) to (2) and solve for x:}\\\\5+2(x-7)=7\qquad\text{use the distributive property}\\\\5+(2)(x)+(2)(-7)=7\\\\5+2x-14=7\\\\2x+(5-14)=7\\\\2x-9=7\qquad\text{add 9 to both sides}\\\\2x-9+9=7+9\\\\2x=16\qquad\text{divide both sides by 2}\\\\\dfrac{2x}{2}=\dfrac{16}{2}\\\\\boxed{x=8}$

$\text{Substitute it to (1):}\\\\y=8-7\\\\\boxed{y=1}$

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2 years ago

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4-9x= -14 solve the inequality.

polet [3.4K]

4 - 9x = -14
4 - 4 - 9x = -14 - 4
9/9x = -18/9
x = -2

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