Question

solve by trail and error method (1) 5a+5=30 (2) 2a+3=17​

Answer 1

Answer:

1. 5

2. 7

Step-by-step explanation:

1.

Let a=4

5(4)+5=30

20+5=30

25=30

Not True

Let a=5

5(5)+5=30

25+5=30

30=30

Therefore,a=5

2.Let a=6

2(6)+3=17

12+3=17

15=17

Not True

Let a =7

2(7)+3=17

14+3=17

17=17

Therefore a=7

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