Question

Solve the system of linear equations below.

y = -2x + 19
y = x + 7

Answer 1

\(y = -2x + 19 \\
y = x + 7\)

so go for \(y = y\)

ie: \( \ \ -2x + 19 = x + 7\)

and see where you get

Answer 2

y=11? and x=4?

Answer 3

\(\large −2x+19=x+7 \)

\(\large −2x+19 (+ 2x)=x+7 (+ 2x)\)

\(\large 19=3x+7\)

\(\large 19-7=3x+7-7\)

\(\large 12=3x\)

\(\large 3x=12\)

\(\large \frac{3x}{3}=\frac{12}{3}\)

\(\large x = 4\)

check:

\(y = −2(4)+19 = 11\)

and

\(y =(4)+7\ = 11 \)

\(\huge \checkmark \)

Answer 4

awesome, thank you so much! i was a bit confused at first, you've helped greatly!