Question

Evaluate and match each expression on the left to its value on the right, when x = 7 and y=4 .

Answer 1

To evaluate the given expressions, substitute the values of x=7 and y=4 into the expressions and simplify.

Step-by-step explanation:

To evaluate each expression, we substitute the given values of x=7 and y=4 into the expression and simplify.

1. For the expression 7y, substituting y=4 gives 7(4)=28.
2. For the expression 6x+8, substituting x=7 gives 6(7)+8=50.
3. For the expression y+7=3x, substituting x=7 gives 4+7=11, which is not equal to 3(7).

Therefore, the matches are:
7y = 28
6x+8 = 50
y+7=3x does not match any value.

Answer 2

Step-by-step explanation:

12x+4y=12*7+4*4

=84+16

=100

3y+2x=3*4+2*7

=12+14

=26