Solve for x
x + 4 = 10
x = 6
3x + 4x
7x
Mario collects 3 coins per level. The rule for total coins c after n levels.
c = 3n
If the rule is y = x + 8, find the value of y when x is 4.
12
A swallow carries 2 coconuts. The expression for the number of coconuts carried by (s) swallows.
2s
3x = 15
x = 5
5y + 2 - 3y
2y + 2
Mario starts with 5 coins and finds 2 more on each level. The rule for coins (c) after (l) levels.
c = 2L + 5
If the rule is y = 4x, find the value of y when x is 6.
24
A swallow has 10 coconuts and drops (c) coconuts. The expression for coconuts left.
10 - c
2x - 5 = 11
x = 8
4a + 7b - 2a + b
2a + 8b
Kirby starts with 10 stars and uses 3 per boss fight. The rule for stars (s) after (b) bosses.
s = 10 - 3b
If the rule is y = 3x - 5, find the value of y when x is 7.
16
Arthur has 4 coconuts and a swallow brings him 3 more for every hour (h) it flies. The expression for total coconuts.
3h + 4
x / 3 + 4 = 9
x = 15
2(3x + 4) - 5x
x + 8
Yoshi eats 5 berries per minute, but already ate 12 before we started counting. The rule for berries (b) after (m) minutes.
b = 5m + 12
If the rule is y = x / 2 + 9, find the value of y when x is 20.
19
A pile of 20 coconuts is shared equally among (s) swallows. The expression for coconuts per swallow.
20 / s
4(x - 2) = 2x + 10
x = 9
3(2m - 4) - 2(m + 5)
4m - 22
Bowser kidnaps Peach 2 times a year, but Mario already rescued her 7 times previously. The total rescues (r) required after (y) years if he rescues her every time she is kidnapped.
r = 2y + 7
If the rule is y = 2x2 - 3x, find the value of y when x is 4.
20
A swallow starts with 50 coconuts and drops 5 coconuts every hour (h). The expression for coconuts remaining.
50 - 5h