Question

Directions: Use substitution to simplify the following;

Answer 1

answer

1. 2x + y

=2x3+4

=6+4

=10

2. 3x + 2y

=3x3+2x4

=9+8

=17

3. 3y + 2x

=3×4+2×3

=12+6

=18

4. 10x + 4y + 2x

=10×3+4×4+2×3

=30+16+6

=30+22

=42

5. 6y + 5x

=6×4+5×3

=24+15

=39

6. 7x + 4y

=7×3+4×4

=21+16

=37

just gonna do more :)