If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalen
t to x from the second guionis
Into the first equation
tud
3x +2y-21
x - 3y - 4
Into the first equation
tud
3x +2y-21
x - 3y - 4
1 answer:
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Answer:
Step-by-step explanation:
- 4812
- 4×(1000)+8(100)+10(1)+1(2)
- 4000+800+10+2
Answer:
137
Step-by-step explanation:
First start with what you know. The measure of the interior angles of a triangle total to so 51 + 2x + x = 180, then 51 + 3x = 180, 3x = 129, so
x = 43, the exterior angle is on a straight line with x so
x + exterior angle = 180 [since they are supplementary], since x = 43 then
43 + e = 180, so e has to be 137