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devlian [24]
4 years ago
13

Y = −4x + 7 12x + 3y= 21

Mathematics
1 answer:
BaLLatris [955]4 years ago
5 0

Answer:

x =0 , y=7

Step-by-step explanation:

12x + 3(-4x+7) = 21

12x - 12x + 21 = 21

21 = 21

0=21-21

0=0

therefore x = 0

12(0)+3y =21

3y =21

3y/3=21/3

y=7

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Solve for x<br><br> 2x - 1 - 1 = x - 3 - ( -5 + x )
Nana76 [90]

Answer:

x=2

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

2x−1−1=x−3−(−5+x)

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2x−1−1=x+−3+(−1)(−5)+−1x

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Step 2: Add 2 to both sides.

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