ALGEBRA 1M

Calculate the value of 6x + k + 40 + y , when x = 8, k = 12 and y =− 30 .

Solution

=6x + k + 20 + y

=6(8) + 12 + 40 + (-30)

=6(8) + 12 + 40 + (-30)

=48 + 12 + 40 – 30

= 100 – 30

= 70 answer

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Calculate the value of 3x + k + 50 + y , when x = 7, k = 14 and y =− 7 .