Question

1. Solve each equation given that a = 3 and b = 5
a ( 12 – 4 ).
2. Solve each equation given that a = 3 and b = 5
4a + 5b +6a +7b.

Answer 1

Answer:

a ( 12 – 4 ).

=3(12-4)=24

2.4a=12

5b=25

6a=18

7b=35

12+25+18+35=90

Answer 2

$4a \: + \: 5b \: + \: 6a + 7b$

$4 \times 3 \: + 5 \times 5 + 6 \times 3 + 7 \times 5$

$12 + 25 + 18 + 35$

$= 90{answer}$