5x-y
=5(3)-1
=15-1
=14
Therefore, the answer is 14.
The equation is simplified to x = 3/2
<h3>What are linear equations?</h3>
Linear equations are equations with the highest power of a variable as 1
Given the equation;
1/ 2x = 5/ 4
cross multiply
4 × x = 2 × 5
4x = 10
Make 'x' the subject
x = 10/ 4
Reduce to simplest term
x = 3/ 2
Thus, the equation is simplified to x = 3/2
Learn more about linear equations here:
brainly.com/question/14323743
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2(3)^3 + 4(3)^2-6(3)
2x 27 + 4x9 - 18
54 + 36 -18
= 72
Answer:
9
Step-by-step explanation:
