6m + 6m + 15m + 15m = 42m
no 40m will not be enough
D'(-3,-4)
E'(-3,-10)
F'(3,-6)
Answer:
23x = -115
Step-by-step explanation:
In the substitution method, you must solve for 1 variable in 1 equation to replace it in the other equation. For the system:
2x - 7y = 4
3x + y = -17
Solving for y in the second equation:
y = -17 - 3x
Replacing y in the first equation:
2x - 7(-17 - 3x) = 4
2x + 119 + 21x = 4
23x = -115
This is the new equation after use the substitution method.
Answer:
x = 20
Step-by-step explanation:
x + 29 = 49
- 29 - 29
x=20
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