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2 + 2 + x - 7 = 21
11 + x = 21
We have to subtract 11 on both sides to isolate x
11 ( - 11 ) + x = 21 ( - 11 )
11 and 11 cancels out
x = 10
Answer:
Infinitely many solutions.
Step-by-step explanation:
x-2y=-3
14y-7x=21
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simplify 14y-7x=21 into 2y-x=3
x-2y=-3
2y-x=3
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x=2y+(-3)
x=2y-3
2y-(2y-3)=3
2y-2y+3=3
0+3=3
infinitely many solutions
Answer:
-n+33
Step-by-step explanation:
1. do distributive property
2. 7y+21-8n+12
3. combine like terms
4. 7n and 8n both are like terms so, 7n-8n= -1n or -n
5. 21 and 12 are like terms so, 21+12= 33
answer is: -n + 33 or -1n + 33
Answer:
The answer to your question is -3
Step-by-step explanation:
Data
A (-8, -35)
B (6, 21)
Process
1.- Calculate the slope
slope = m = (y2 - y1) / (x2 - x1)
x1 = -8 y1 = -35 x2 = 6 y2 = 21
-Substitution
m = (21 + 35) / (6 + 8)
-Simplification
m = 56 / 14
-Result
m = 4
2.- Calculate the equation of the line
y - y1 = m(x - x1)
-Substitution
y + 35 = 4(x + 8)
-Simplification
y + 35 = 4x + 32
y = 4x + 32 - 35
-Result
y = 4x - 3
3.- Find the y-intercept
The y-intercept is the number after the x, for this equation is -3.