This i will give brainless answer to

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

Sundar used linear combination to solve the system of equations shown. he did so by multiplying the first equation by 5 and the second equation by another number to eliminate the y-terms. what number did sundar multiply the second equation by? 2x+9y=41 3x+5y=36

Use sigma notation to represent the following series for 9 terms.