Question

Answer gets brainliest

Answer 1

Answer:

y = 5, x = 1.5

Step-by-step explanation:

→ Minus the 2 equations from each other

y = 5

→ Substitute into first equation to find value of x

4x + 15 = 21

→ Minus 1 from both sides

4x = 6

→ Divide both sides by 6

x = 1.5

Answer 2

Step-by-step explanation:

so first you want to make sure that either x or y is equal on both sides but luckily 4x is the same so we can begin :)

$4x + 3y = 21

$

$4x+2y=16$

3y - 2y = y (same as 1y)

since 4x is equal on both sides, whatever the difference between 21 and 16 =y

$21 - 16 =5$

$y=5$

now you just needed to substitute the other numbers in

$4x + 3(5)=21$

$4x + 15 = 21$

now just make 4x the subject

$4x=21-15$

$4x=6$

$x=6 \div 4$

$x=1.5$

So x=1.5 and y=5