<span>Select one equation and solve it for one of its variables.
In the other equation, substitute for the variable just solved.
Solve the new equation.
<span>Substitute the value found into any equation involving both variables and solve for the other variable. </span></span>
Answer:
D
Step-by-step explanation:
Ijuliuxfd kjdfuk,kdfjhv lskdusd,f lsddv,dsjzh vas,dj
Answer:
x = 4; y = 8
Step-by-step explanation:
y=2x
y=x+4
2x = x + 4
x = 4
y = 2x = 2(4)
y = 8
Solution: x = 4; y = 8
40/100=0.4 and 72/0.4=180
so the answer is 180
