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kloeydrea08
04.06.2020 •
Mathematics
Help fast please who ever answer correct i will rate them excellent,
which is the correct answer
1) 4x - 7 = 13 *
5
4
3
2
2) 3x + 4 = 25 *
5
4
3
7
3) p/3 +5 =9 *
13
12
10
11
4) m/5 + 2 = 12/5 *
0
1
2
3
5) 4z/5 - 2 =6 *
9
10
11
12
who ever answer correct i will rate them excellent
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Ответ:
Below in bold.
Step-by-step explanation:
1) 4x - 7 = 13
4x = 20
x = 20/4
x = 5.
2) 3x + 4 = 25
3x = 21
x = 7.
3) p/3 + 5 = 9
p/3 = 9 -5 = 4
Multiply both sides by 3:
p = 3*4
p = 12.
4) m/5 + 2 = 12/5
Multiply through by 5:
m + 10 = 12
m = 12 -10
m = 2.
5) 4z/5 - 2 = 6
4z/5 = 8
Cross multiply:
4z = 5*8
4z = 40
z = 10.
Ответ:
2x+7
Step-by-step explanation: