Answer:
(-4, 5)
Step-by-step explanation (work shown in attached picture):
1) Since x is already isolated in the first equation, substitute that value for x into the other equation to find y. So, substitute 16-4y for the x in 3x + 4y = 8, then solve for y. This gives us y = 5.
2) Now, substitute that given value for y back into any one of the equations to find x. I chose to do it in the first equation. Substitute 5 for the y in x = 16-4y, then solve for x this time. This gives us x = -4.
Since x = -4 and y = 5, the solution is (-4, 5).
Answer:
infinite Solutions
Step-by-step explanation:
12x+1 = 12x+3-2
12+1 = 12x+1
The equation is same on both sides, so x can be anything.
Answer:
Step-by-step explanation:
we know hat
<u><em>Vertical Angles</em></u> are the angles opposite each other when two lines cross. They are always congruent.
In this problem
----> by vertical angles
we have
---> given problem
therefore
34 tens + 20 tens = ?
1 ten = 10 ones or 10.
34 + 20 = 54
54 tens
34 tens + 20 tens = 54 tens
54 × 10 = 540
34 tens + 20 tens = ?
34 tens + 20 tens = 54 tens
34 tens + 20 tens = 540
