Answer:
x = 6
y = -9
Step-by-step explanation:
we have:
7x +2y = 24 equation 1
8x+2y= 30 equation 2
using equation 2 we have:
8x = 30 -2y
x=[tex]\frac{30-2y}{8}[/tex] equation 3
using equation 3 in equation 1 we have:
7([tex]\frac{30-2y}{8}[/tex])+2y = 24
[tex]\frac{210}{8} - \frac{14y}{8} +2y =24\\\\\frac{1}{4}y = -\frac{18}{8} \\\\y=-\frac{18}{8} * 4\\\\y=-9[/tex]
so we have:
x=[tex]\frac{30-2(-9)}{8}[/tex]
x=[tex]\frac{30+18}{8}[/tex]
x=6
For 7x +2y = 24, the answer for x is [tex]\frac{-2}{7}y+\frac{24}{7}[/tex] and y is [tex]\frac{-7}{2}+12x[/tex]
Solve: (x)Let's solve for x.
7x+2y=24
Step 1: Add -2y to both sides.
7x+2y+−2y=24+−2y
7x=−2y+24
Step 2: Divide both sides by 7.
7x/7=-2y+24/7
(y) Let's solve for y.
7x+2y=24
Step 1: Add -7x to both sides.
7x+2y+−7x=24+−7x
2y=−7x+24
Step 2: Divide both sides by 2.
2y/2=-7x+12/2
For 8x+2y= 30, the answer for x is[tex]x=\frac{-1}{4}y+\frac{15}{4}[/tex] and y is [tex]y=-4x+15[/tex]
Solve:(x)Let's solve for x.
8x+2y=30
Step 1: Add -2y to both sides.
8x+2y+−2y=30+−2y
8x=−2y+30
Step 2: Divide both sides by 8.
8x/8=-2y+30/8
(y)Let's solve for y.
8x+2y=30
Step 1: Add -8x to both sides.
8x+2y+−8x=30+−8x
2y=−8x+30
Step 2: Divide both sides by 2.
2y/2=-8x+30/2
