What is the solution to the linear equation?

4.

UkoKoshka [18]

Answer:A

Step-by-step explanation:

5 0

3 years ago

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-3x+4y=7 y=3x-5 I NEED HELP PL Z HELP ME

andrew-mc [135]

$- 3x + 4y = 7 \\ y = 3x - 5$

[Substitute the given value of y into the first equation]

$- 3x + 4 \times (3x - 5) = 7$

[Distribute 4 through the parentheses]

$- 3x + 12x - 20 = 7$

[Collect like terms]

$9x - 20 = 7$

[Move the constant to the right-hand side and change its sign]

$9x = 7 + 20$

[Add the numbers]

$9x = 27$

[Divide both sides of the equation by 9]

$x = 3$

[Substitute the given value of x into the second equation]

$y = 3 \times 3 - 5$

[Multiply the numbers]

$y = 9 - 5$

[Subtract the numbers]

$y = 4$

[The possible solution of the system is the ordered pair (x,y)]

$(x,y)=(3,4)$

3 0

3 years ago

What is the volume? 7 mm 7 mm 7 mm cubic millimeters

Oksanka [162]

$\Huge\bf\overbrace{\underline{ \underbrace{\blue \dag \orange{Answer}}}} \blue\dag$

$\large\bf\mapsto{\underline{\red{volume \: of \: cube = {a}^{3} }}}$

$\huge\bf\mapsto{\underline{\green{ {7}^{3} }}}$

$\Large\bf\leadsto{\underline{\purple{ \: 7 \times 7 \times 7 = 343}}}$

6 0

3 years ago

PLEASE HELP IM BEGGING YOU!! FIND THE VALUE OF X

Akimi4 [234]

X = 18.8 bc that’s the only thing that makes sense and us lazy people don’t need to work things out

7 0

3 years ago

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What's greater 4 yards or 13 feet

ELEN [110]

That would be 13 feet because each yard is 3 feet so 3x4=12 (feet)
so the correct answer would be 13 feet.

3 0

3 years ago