Answer:
Choices C and D
Step-by-step explanation:
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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The answer is -8 the angles of the triangle are 180 so
180=42+x+76+x+78
180=2x+196
2x=-16
x=-8
This may help, a quadratic equation is any equation that can be rearranged in standard form as ax^{2}+bx+c=0 where x represents an unknown, and a, b, and c represent known numbers, where a ≠ 0. If a = 0, then the equation is linear, not quadratic, as there is no ax^2 term.
here’s an example