You're going to use the substitution method for this.
First, we know that Y = x-7, so we can plug x-7 into everywhere we see Y!
3x - 3(x - 7) = 21
then we simplify
3x - 3x + 21 = 21
^ ^
These cancel out!
So we're left with...
21 = 21
That means that the solution to this equation is all real numbers!
Answer:
WAG KA MAG BRAINLY PANG BOBO LANG GUMAGAMIT NITO
Answer : A
8.4 divided by 1.2 = 7.0
Answer:
x=5
Step-by-step explanation:
Angles (7x+17)° and (5x-5)° are consecutive interior angles, that means they add up to 180<span>°.
So we can make an equation to solve for x, which eventually will help us solve for y.
180</span> = (7x+17) + (5x -5)
re arrange that:
180 = 7x + 5x + 17 - 5
180 = 12x + 12
- 12 -12
168 = <span>12 x
</span> 12 12
14 = x
Now we will plug it into (5x - 5) to help us solve for y,
Angle (5x - 5) and (23y) are supplementary angles, meaning they equal to 180°.
<span> 180 = (23y) + (5(14) - 5)
180 = (23y) + (70 - 5)
180 = 23y + 65
- 65 - 65
<u>115</u> = <u>23y</u>
23 23
___ = y
Good luck!
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