X=-2 and y=3.
The first step we take is to substitute the value for y from the second equation into the first equation:
4x+5(3x+9)=7
This is justified by substitution. The next step is:
4x+5*3x+5*9=7
4x+15x+45=7
This is justified by the distributive property. The next step is:
19x+45=7
This is justified by addition of like terms. The next step is:
19x+45-45=7-45
19x=-38
This is justified by the subtraction property of equality. The next step is:
19x/19 = -38/19
x=-2
This is justified by the division property of equality. The next step is:
y=3(-2)+9
y=-6+9
y=3
This is justified by substitution, multiplication and addition, in that order.
Answer:
Can you please give me the question or link
Step-by-step explanation:
Answer:
Width Length Area
1 m 31 m 31 m2
2 m 30 m 60 m2
3 m 29 m 87 m2
4 m 28 m 112 m2
5 m 27 m 135 m2
------------------------------
14 m 18 m 252 m2
15 m 17 m 255 m2
16 m 16 m 256 m2
17 m 15 m 255 m2
18 m 14 m 252 m
Step-by-step explanation:
25.
25 + 32 = 57
Brainliest maybe? Trying to get to next rank. Sorry to ask.
3. n-3=7 ? Does this answer your question?
