Set up equations and solve them to find the unknown numbers in the following cases: a) Add 4 to eight times a number; you get 60. b) One – fifth of a number minus 4 gives 3
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Answered by
2
Step-by-step explanation:
a, 8x + 4 - 60
8x = 60-4
= 56
x = 56÷8
= 7
b, 1/5 × x - 4/1 = 3
x/5 - 4 = 3
x/5 = 3
x = 3×5
= 15
Answered by
1
Answer:
a) Let α be the number.
According to the statement:
4+8α=60
8α=56
⇒α=7
b) Let the number be x.
According to the statement:
5
1
×(x)−4=3
5
x
=7
⇒x=35
Step-by-step explanation:
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